ライフサイエンスコーパス: seismic

1 i.e., two days before and after the start of seismic activities.

2 d applications, including prediction of deep seismic activity and immobilization of nuclear waste in

3 annelization, with potential implications on seismic activity and transport of deep hydrocarbon-beari

4 lead to more informative forecasting of the seismic activity in seismogenic areas.

5 A nearly 20-year hiatus in major seismic activity in southern California ended on 4 July

6 Seismic activity increased even while injection rates de

7 As seismic activity is a non-selective force we recovered s

8 As seismic activity is also present on other planets and mo

9 g of crustal carbonates and the most intense seismic activity on Earth.

10 Extensive seismic activity preceding the eruption shows that infla

11 lation experiments were carried out and show seismic activity to be a major force increasing the hydr

12 Seismic activity was highly unevenly distributed over ti

13 ly analyzed within the context of background seismic activity.

14 ted a "clockwise hysteresis" pattern: higher seismic amplitude with respect to the fountain height du

15 hanisms that govern the partitioning between seismic and aseismic slip and their interaction remain u

16 sform faults display a unique combination of seismic and aseismic slip behavior, including a large gl

17 mation during large earthquakes suggests the seismic and destructive potential of impact-induced eart

18 y is of great interest for understanding the seismic and dynamic structure of planetary interiors.

19 alternative interpretation for the origin of seismic and geochemical anomalies in the deep lower mant

20 crustal fault network geometry inferred from seismic and geodetic data.

21 for considering many optical devices in the seismic and geophysical context.

22 Using seismic and radar observations on the Larsen C Ice Shelf

23 generated strong tremor that was recorded by seismic and remote low-frequency acoustic (infrasound) s

24 of clay rocks significantly, thus modifying seismic and sonic responses to shaley sequences.

25 the evolution of the arc and its associated seismic and volcanic hazards.

26 Geodetic, seismic, and seismicity data provided an integrative vie

27 n believed to be one potential source of the seismic anisotropic layer at the bottom of the lower man

28 e explanation for the complexity in observed seismic anisotropy and the rapid lateral changes in seis

29 the lower mantle that reconcile the observed seismic anisotropy beneath the Tonga slab (V(SH)>V(SV))

30 These observations provide depth-dependent seismic anisotropy for future mantle flow simulations, a

31 We observe strong seismic anisotropy in the crust of southern African crat

32 lived geochemical reservoirs and the lack of seismic anisotropy in the majority of the lower mantle e

33 this anisotropy and show how an analysis of seismic anisotropy that incorporates measured ray path g

34 s anomalous seismic features, such as strong seismic anisotropy, related to the properties of the mai

35 mantle lithosphere, which may be inferred by seismic anisotropy.

36 and offer insights for elucidating prominent seismic anomalies and oxygen cycles in Earth's interior.

37 the robustness and distribution of positive seismic anomalies, inferred as subducted slabs, we creat

38 ating a ~10,000-component, 20-kilometer-long seismic array.

39 ted spatiotemporal resolutions because dense seismic arrays are rarely sufficiently affordable for su

40 ecommunication fiber-optic cables into dense seismic arrays that are cost effective.

41 ults in the vicinity of the brittle-ductile (seismic-aseismic) transition.

42 g to weak interaction regimes in a system of seismic asperities embedded in a ductile fault zone matr

43 hese data provide insight into the long-term seismic behavior of the Loma Blanca fault and, by infere

44 the topographical extreme belt, fault zone, seismic belt, and dry valleys.

45 smic hazards for this part of the SW Montana seismic belt.

46 pe composition of calcite formed during this seismic cluster records rapid degassing of CO2, suggesti

47 Based on waveform modeling of seismic compressional waves that are reflected off the E

48 seismicity, we developed a two-dimensional, seismic cycle model of the Nepal Himalaya.

49 se to lithostatic pressure during the entire seismic cycle.

50 trate the power of the framework, we analyze seismic data acquired during the June 2017 Nuugaatsiaq,

51 l and upper mantle structure from wide-angle seismic data across the Triassic South Georgia Rift that

52 The continuously growing amount of seismic data collected worldwide is outpacing our abilit

53 ns a realistic challenge for gathering macro-seismic data in a timely, accurate and cost-effective ma

54 e available geomorphological, geological and seismic data in the literatures show that this model is

55 ls poking through shallow gas pockets in 3-D seismic data of the CNS indicating that about one-third

56 We recorded 7 months of passive seismic data on a 27 km section of dark fiber stretching

57 ic analysis of this doublet, we use regional seismic data providing robust two-point source models, f

58 New high-quality three-dimensional seismic data reveal a detailed geological record of buri

59 modern times and their frequency is unknown, seismic data suggest they were not rare in the past and

60 integrate this onshore dataset with offshore seismic data to provide a synoptic view of the flexural

61 Combining three-dimensional seismic data, borehole data and fluid-flow modeling, we

62 Constrained by the MLS and seismic data, finite element models indicate shallow fau

63 ower-mantle bridgmanite is required to match seismic data, implying the presence of metallic iron in

64 On the basis of high-resolution seismic data, we document the presence of dome structure

65 Here using, high-resolution active-source seismic data, we show that Mount St Helens sits atop a s

66 ehavior, including a large globally averaged seismic deficit, and the local occurrence of repeating m

67 uation domain controls the largest monitored seismic, deformation, and geochemical unrest at the cald

68 ies in the drill core coincide with regional seismic discontinuities and reflect transient expansion

69 We present a novel record of near-field co-seismic displacement, measured with 1-second temporal re

70 We observe that the seismic energy and the hydraulic energy similarly depend

71 d conduit conditions) play a key role in the seismic energy generation during the eruptions.

72 e, we propose a new approach to evaluate the seismic energy released during fluid injection by integr

73 herefore, to accurately predict the released seismic energy, aseismic deformation should be considere

74 rthquake rate coincident with the passage of seismic energy.

75 ions with nuclear yields being comparable to seismic estimates.

76 e specifically the probability that a strong seismic event occurs doubles with the doubling of S.

77 lation methods that reproduce both realistic seismic events and long-term earthquake sequences.

78 ur results suggest that detection of abiotic seismic events are biologically relevant and widespread

79 basement contribute to recent occurrence of seismic events at subsurface energy exploration sites.

80 In particular the possibility of large seismic events can be increased by multiple-well operati

81 The 13 distinct seismic events delineated by this effort demonstrate tha

82 The location of impulsive seismic events indicative of lava reaching the seafloor

83 and pore pressure along a fault can nucleate seismic events larger than M(w)3 even after terminating

84 bruary 2017 to 16 February 2018, including 7 seismic events recorded during the study period.

85 Earth's inner core boundary, here we present seismic evidence for a localized 4-8 km thick zone acros

86 as been hypothesized several decades ago, no seismic evidence has ever been reported.

87 Here, we present new seismic evidence of widespread Late Eocene to Oligocene

88 Here, we present bathymetric and seismic evidence showing that the caldera was not open t

89 egration of unique micropalaeontological and seismic evidence.

90 However, for seismic excitation, where energy is mostly carried by su

91 h scales, ranging from thermal vibrations to seismic excitation.

92 graphic model, derived from on- and offshore seismic experiments, that reveals a strong low-velocity

93 f physiological disruption, we conclude that seismic exposure can harm scallops.

94 ore fluid pressure reduction due to the post-seismic extensional cracks contributes little to increas

95 rker thermal maturity indicators to identify seismic faults in drill core recovered from the Japan Tr

96 rovide an explanation for the many enigmatic seismic features that are observed in ULVZs.

97 ove the core-mantle boundary shows anomalous seismic features, such as strong seismic anisotropy, rel

98 of advanced FWI methods to three-dimensional seismic field data.

99 ximately 550 ka-the longest direct record of seismic frequency documented for any fault to date.

100 l positioning system (GPS) data reveal clear seismic gaps to the south of the island of Java.

101 t for assessing fault displacement, defining seismic hazard and for predicting ground motion.

102 deling of realistic slip profiles for use in seismic hazard assessment and paleoseismology studies.

103 any earthquake cycles, is a key question for seismic hazard assessment.

104 ake, which should be accounted for in future seismic hazard assessments.

105 Seismic hazard in continental rifts varies as a function

106 uld motivate reevaluation of these issues in seismic hazard models.

107 ess changes alone have a small effect on the seismic hazard.

108 the safety of the reservoir storage and the seismic hazard.

109 l to understanding and appraising intraplate seismic hazard.

110 ments, potentially increasing the associated seismic hazard.

111 mine the likelihood of large shallow slip or seismic hazard.

112 development of hanging wall stratigraphy and seismic hazards for this part of the SW Montana seismic

113 d to be accounted for to mitigate unexpected seismic hazards in the presence of the site-specific unc

114 tinental rift systems as well as the related seismic hazards.

115 formidable challenge in quantifying regional seismic hazards.

116 ocesses correspond to the timescales of post-seismic healing observed in earthquakes.

117 Seismic heterogeneities detected in the lower mantle wer

118 vide good explanations for some lower-mantle seismic heterogeneities with different length scales exc

119 a unrest are still poorly reconstructed from seismic images.

120 Seismic imaging reveals that these plumes can be of deep

121 Using a novel wide-angle seismic imaging technique, here we show the presence of

122 field modelling is a key component of modern seismic imaging techniques, such as reverse-time migrati

123 strong dilatancy strengthening, supported by seismic imaging that indicates enhanced fluid-filled por

124 be extended to optical microscopy, radar, or seismic imaging.

125 resolution significantly where otherwise no seismic information is available.

126 Sparse seismic instrumentation in the oceans limits our underst

127 Based on seismic interferometry, the virtual source (VS) method i

128 The Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSi

129 urface ruptures a few kilometres west of the seismic line along the northern edge of the Centennial b

130 Using 2D seismic lines and bathymetric data, we map tectonic feat

131 lection for areas near low-vegetation height seismic lines in areas with low densities of anthropogen

132 from eight wolf packs and characteristics of seismic lines to investigate whether ease-of-travel or a

133 d seasonal selection patterns of wolves near seismic lines, and whether the density of anthropogenic

134 th this new knowledge, increasingly accurate seismic locations will considerably improve images of fi

135 locity to mean that hot plumes-which exhibit seismic low-velocity anomalies at depths of 200 kilometr

136 pot buoyancy fluxes and overlie regions with seismic low-velocity anomalies in the upper mantle, unli

137 Here, we propose a seismic metabarrier able to convert seismic Rayleigh wav

138 n can be used for a better prediction of the seismic moment in the total compilation of earthquakes o

139 However, existing seismic monitoring methods based on wave reflection or t

140 on infrastructure (dark fiber) for broadband seismic monitoring of both near-surface soil properties

141 Ambient-noise-based seismic monitoring of the near surface often has limited

142 Here we use passive seismic monitoring to examine mechanisms of iceberg disi

143 dy demonstrates the efficacy of near-surface seismic monitoring using DAS-recorded ambient noise.

144 sting submarine telecommunication cables for seismic monitoring.

145 Beginning on 24 April 2015, the seismic network captured an eruption that culminated in

146 the entire waveform archive of the regional seismic network in Southern California.

147 canoes despite having a comparatively sparse seismic network.

148 from the Italian Strong Motion and National Seismic networks, and field measurements of surface rupt

149 otential of DAS in next-generation submarine seismic networks.

150 A strong correlation between seismic noise and independent measurements of human mobi

151 fish exposed to playbacks of pile-driving or seismic noise for 12 weeks no longer responded with an e

152 ivity, leading to a months-long reduction in seismic noise of up to 50%.

153 The 2020 seismic noise quiet period is the longest and most promi

154 eophysical structure in Long Beach, CA, from seismic noise recorded on a "large-N" array with 5204 ge

155 gest and most prominent global anthropogenic seismic noise reduction on record.

156 and seismometers is challenged by background seismic noise, its robust detection with gravity gradiom

157 o longer responded to short-term playback of seismic noise.

158 Seismic observations are interpreted using a geodynamic

159 Seismic observations in volcanically active calderas are

160 , after over a decade of investigations, the seismic observations still cannot be explained simply by

161 Seismic observations suggest that the uppermost region o

162 Here we use seismic observations to show that the most recent erupti

163 A first implementation of this seismic ocean thermometry constrains temperature anomali

164 fficient for velocities close to the maximum seismic one, independently of the material studied.

165 s are ubiquitous at interfaces with optical, seismic or acoustic waves, and also with electron, neutr

166 he extension crack formation during the post-seismic period by analyzing extension quartz veins expos

167 and normal faults) generated during the post-seismic period create fluid pathways that enhance the dr

168 s, we find a relatively strong late-arriving seismic phase (dubbed Dam-forming phase or D-phase) reco

169 Earthquake signal detection and seismic phase picking are challenging tasks in the proce

170 ault can slip in a single earthquake and the seismic potential of a partially coupled megathrust inte

171 Here, we show that seismic power exponentially increases as the slowly slip

172 We find that patterns in seismic power follow the 14-month slow slip cycle in Cas

173 ween our mineral physics predictions and the seismic Preliminary Reference Earth Model down to at lea

174 red a ~9-km long, high-resolution reflection seismic profile in the Centennial Valley, Montana, to be

175 Mountains and available data from both deep seismic profiles and surface structural deformation.

176 ence of the normal faults interpreted in 3-D seismic profiles collected from adjacent areas.

177 r-seafloor magnetic and bathymetric data and seismic profiles collected over the TAG Segment of the M

178 boundary beneath southwest Okhotsk Sea with seismic properties intermediate between those of the inn

179 seismic velocities requires knowledge of the seismic properties of all of Earth's possible mineral co

180 Lateral variations in seismic properties on the slab surface suggest that serp

181 Theoretically, the VS records can improve seismic quality with less negative impact from overburde

182 urface seismometers in populated areas, this seismic quiescence extends for many kilometers radially

183 y the Polochic fault during a long period of seismic quiescence, from 1450 to 1976 CE.

184 loped to accurately describe and predict the seismic rainbow effect; allowing the metawedge to be des

185 es or reflect the Rayleigh waves creating a "seismic rainbow" effect analogous to the optical rainbow

186 ropose a seismic metabarrier able to convert seismic Rayleigh waves into shear bulk waves that propag

187 al scale, the resonant metawedge, to control seismic Rayleigh waves.

188 olcano, Alaska, using a novel application of seismic receiver functions.

189 ts (DFLEs) in near real-time using broadband seismic records, which can provide timely warnings of th

190 and clustering seismic signals in continuous seismic records.

191 integrate controlled-source electromagnetic, seismic reflection and borehole data with hydrological m

192 Using two-dimensional seismic reflection data from eastern Nepal, we present e

193 Combining bathymetric and seismic reflection data, together with seismological ana

194 ied iceberg scours seen in three-dimensional seismic reflection images from the mid-Norwegian slope.

195 Using high-resolution seismic reflection imaging, we present observations of t

196 When combined with a third seismic reflection profile of the western Himalayas, the

197 eometry provided by two newly obtained, deep seismic reflection profiles.

198 By studying time-lapse images of a seismic reflector between two water boundaries with subt

199 e and then interpreted spatial variations in seismic refraction velocities.

200 Using satellite and seismic remote sensing observations combined with three-

201 These additional seismic responsescontaminate both direct-downgoing and r

202 These seismic results suggest that, in the current thermo-comp

203 magma reservoir determined from multichannel seismic results.

204 city is essential in efforts to mitigate the seismic risk associated with subsurface technologies.

205 injection protocol is likely to increase the seismic risk whereas a gradual step-up protocol is likel

206 Similar hysteresis has been observed between seismic river noise and discharge during storms, suggest

207 ant rate acts in the direction of triggering seismic rupture at early times followed by aseismic cree

208 two sites and suggest deceleration of the co-seismic rupture near Earth's surface.

209 tance for eruption forecasting the causes of seismic rupture processes during caldera unrest are stil

210 nsition, effectively stabilizes along-strike seismic rupture propagation and results in rupture barri

211 p events show pulse-like ruptures similar to seismic ruptures.

212 Here we show that seismic scattering coda waves, acquired during continuou

213 face gravity waves generate double-frequency seismic Scholte waves, as described by the Longuet-Higgi

214 ng technology that converts optical fiber to seismic sensors, allows us to leverage pre-existing subm

215 upture, each dominated by either co- or post-seismic shallow fault slip.

216 road range of engineering applications, from seismic shielding at low frequency to ultrasonic cloakin

217 Within recent years, there has been a seismic shift in smoking rates from high-income to low-

218 work and a Gaussian mixture model to cluster seismic signal segments and detect novel structures.

219 ges in microseismic monitoring is that those seismic signals generated from micro seismicity have ext

220 rning framework for detecting and clustering seismic signals in continuous seismic records.

221 Exposure to seismic signals was found to significantly increase mort

222 ed together with high-frequency (HF, 1-3 Hz) seismic signals, we find a relatively strong late-arrivi

223 ortant bivalves, are affected by exposure to seismic signals.

224 In situ seismic simulation experiments were carried out and show

225 Both aseismic and seismic slip accommodate relative motion across partiall

226 , the reason why, in continental domains, co-seismic slip along faults can propagate up to the Earth'

227 show that phyllosilicates can facilitate co-seismic slip along faults during earthquakes.

228 and experienced relatively minor (if any) co-seismic slip in 2011.

229 emonstrate that the observed variation of co-seismic slip is neither random nor artificial, but self-

230 We analyze high-resolution along-strike co-seismic slip profiles of the 1992 Mw = 7.3 Landers and 1

231 along micrometer-thick layers can facilitate seismic slip propagation during earthquakes in continent

232 Seismic slip propagation is facilitated by along-fault l

233 on zones, where pelagic clays participate in seismic slip propagation.

234 cular, rotary shear experiments conducted at seismic slip rates (1 ms(-1)) show that phyllosilicates

235 riction experiments, we demonstrate that, at seismic slip rates (1 ms(-1)), similar calcite gouges wi

236 Due to the extreme loading conditions during seismic slip, many competing physical phenomena occur (l

237 (depending on the fluid viscosity (eta), co-seismic slip-rate (V), fault geometry (L/H(0)(2)) and ea

238 However, at seismic slip-rate, the slip weakening distance (D(c)) in

239 eneous stress state that in turn controls co-seismic slip.

240 e we present high-resolution bathymetric and seismic sonar data sets of 10 morphologically similar dr

241 Seismic source locations and waveform attenuation analys

242 Tomography, local seismic source studies, geodetic, and geochemical constr

243 ity to detect subtle signals from subsurface seismic sources that would have been concealed in noisie

244 s of Alytes obstetricans in response to both seismic sources, whereas other parameters remained stabl

245 akes using only a portion (less than 1/3) of seismic stations.

246 Here, we analyse geological observations of seismic structures in exhumed lower crustal rocks.

247 may reflect the degree-two lower mantle slow seismic structures.

248 Seismic studies and diamond inclusions(6,7) have shown t

249 Seismic surveys map the seabed using intense, low-freque

250 ts, we investigate the impact of exposure to seismic surveys on scallops, using measurements of physi

251 (playbacks of recordings of pile-driving and seismic surveys), but not to a more continuous additiona

252 aseismic for two months just after the main seismic swarm (April 1, 1984) due to a SE-to-NW directed

253 In September 2017, a distal seismic swarm triggered the evacuation of around 140,000

254 Seismic swarms correlate in space and time with fluid in

255 ly correlated with the observed migration of seismic swarms on the Gofar transform.

256 xt] earthquakes with abundant foreshocks and seismic swarms, as on the Gofar transform of the East Pa

257 eometry that can be monitored remotely using seismic techniques.

258 The seismic temporal increase is strongly correlated with th

259 Seismic tomography provides unique constraints on the mo

260 Seismic tomography reveals a continuous slab dipping at

261 al lithosphere 175 kilometers thick, whereas seismic tomography supports a much thicker root (>250 ki

262 we use joint active-source/local-earthquake seismic tomography to derive unprecedented constraints o

263 an array of floating seismometers is used in seismic tomography to improve the resolution significant

264 oscience community is increasingly utilizing seismic tomography to interpret mantle heterogeneity and

265 e mobile laser scanning (MLS), active-source seismic tomography, and finite element modeling to inves

266 s high-velocity heterogeneities as imaged by seismic tomography.

267 rupture geometry, demonstrated likelihood of seismic triggering, and high model temperatures in young

268 oral characteristics and behavior similar to seismic tsunamis, is poorly understood.

269 Although the seismic unrest peaked in late September and early Octobe

270 anisotropy and the rapid lateral changes in seismic velocities in D".

271 erplume influences the EARS far from the low seismic velocities in the magma-rich northern half.

272 Accurate interpretation of observed seismic velocities requires knowledge of the seismic pro

273 The quadratic reduced seismic velocity and pressure were calculated to track t

274 antle asthenosphere corresponds to an abrupt seismic velocity decrease and electrical conductivity in

275 present a continuous high-resolution crustal seismic velocity model for an 800 km section of the acti

276 Our seismic velocity model indicates that the globally obser

277 topography-dependent tomographic scheme, the seismic velocity structure of the Eastern Tibetan Platea

278 Here we use seismic velocity, gravity and topography to generate a 3

279 zones and have an unusually low density and seismic velocity.

280 bducted oceanic crust will be visible as low-seismic-velocity anomalies throughout the lower mantle.

281 ority is generated by the interaction of the seismic wave field with three-dimensional heterogeneity

282 for an ergodic model that explains observed seismic wave partitioning, a requirement for full-wave f

283 Using numerical simulations of global-scale seismic wave propagation at unprecedented high frequency

284 We use our data to model seismic wave velocities in the top portion of the lower

285 Efficient numerical seismic wavefield modelling is a key component of modern

286 In seismic waveform tomography, or full-waveform inversion

287 Seismic waveforms for hypothetical underground nuclear e

288 antle west of the Sea of Okhotsk by stacking seismic waveforms of SS precursors.

289 to infer slow slip timing from statistics of seismic waveforms.

290 Scattering of seismic waves can reveal subsurface structures but usual

291 nstead consistent with the arrival of strong seismic waves from the magnitude M(w) ~10 to 11 earthqua

292 ations at the seafloor capable of generating seismic waves in the solid Earth.

293 lf of the diffracting waveforms, we detected seismic waves scattered by three-dimensional structures

294 The design allows controlling seismic waves with wavelengths from 10-to-100 m with met

295 dary in certain regions using scattered P'P' seismic waves.

296 rthquake rupture, even before the arrival of seismic waves.

297 systems imposed by the propagation speed of seismic waves.

298 propagate into the ground as high-frequency seismic waves.

299 icroearthquakes in the intraplate New Madrid Seismic Zone at annual and multi-annual timescales coinc

300 It occurred near the edge of active seismic zones, similar to other M5+ earthquakes since 20