Results 31 to 40 of about 3,178,879 (308)

Applying the Coulomb Failure Function with an optimally oriented plane to the 2008 Mw 7.9 Wenchuan earthquake triggering [PDF]

open access: yes, 2010
The Coulomb failure function (CFF) quantitatively describes static stress changes in secondary faults near the source fault of an earthquake. CFF can be employed to monitor how static stress transfers and then shed some light on the probability of ...
Xu, C., Li, Z., Wang, J., Drummond, J.
core   +1 more source

Pattern Recognition for Earthquake Detection [PDF]

open access: yes, 1987
The detector algorithms in use at date rely on negative decision logic: based on a model of the ambient noise process they detect all deviations, but many of them are false alarms. The principal alternative to this approach is pattern recognition, which tests on positive correlation with some known signal patterns.
openaire   +3 more sources

Convolutional neural network for earthquake detection

open access: yesCoRR, 2023
The recent exploitation of natural resources and associated waste water injection in the subsurface have induced many small and moderate earthquakes in the tectonically quiet Central United States. This increase in seismic activity has produced an exponential growth of seismic data recording, which brings the necessity for efficient algorithms to ...
openaire   +3 more sources

Distributed sensor for earthquake identification system to activate tsunami shelter finding system [PDF]

open access: yesE3S Web of Conferences, 2021
Padang City as the capital of West Sumatera Province is at high risk of earthquakes and tsunamis due to its location between two continental plates and the Semangko Fault.
Ichwana Putra Dody   +3 more
doaj   +1 more source

Observations of stress relaxation before earthquakes [PDF]

open access: yes, 2004
Theory and observations suggest that seismic shear wave splitting, caused by fluid-saturated stress-aligned microcracks, directly monitors low-level deformation before fracturing, faulting and earthquakes occur.
Gao, Yuan, Crampin, Stuart
core   +1 more source

Deep learning detects uncataloged low-frequency earthquakes across regions

open access: yesSeismica
Documenting the interplay between slow deformation and seismic ruptures is essential to understand the physics of earthquakes nucleation. However, slow deformation is often difficult to detect and characterize.
Jannes Münchmeyer   +6 more
doaj   +1 more source

Spatio-temporal decision support system for natural crisis management with tweetComP1

open access: yes, 2014
This paper discusses the design of a social media analysis system for decision making in natural disasters where tweets are analyzed to achieve situational awareness in earthquake and tsunami events.
Necmioglu, Ocal   +11 more
core   +1 more source

Twitter earthquake detection: earthquake monitoring in a social world

open access: yesAnnals of Geophysics, 2012
The U.S. Geological Survey (USGS) is investigating how the social networking site Twitter, a popular service for sending and receiving short, public text messages, can augment USGS earthquake response products and the delivery of hazard information. Rapid detection and qualitative assessment of shaking events are possible because people begin sending ...
Earle, Paul S.   +2 more
openaire   +4 more sources

Unraveling the Evolution of an Unusually Active Earthquake Sequence Near Sheldon, Nevada

open access: yesSeismica, 2023
One of most universal statistical properties of earthquakes is the tendency to cluster in space and time. Yet while clustering is pervasive, individual earthquake sequences can vary markedly in duration, spatial extent, and time evolution.
Daniel Trugman   +3 more
doaj   +1 more source

Investigating short-term earthquake precursors detection through monitoring of total electron content variation in ionosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The effectiveness and accuracy of earthquake precursors are measured by the ability of the precursors to predict the time, epicentral distance, and magnitude of the earthquake for short-term earthquake prediction.
Nur Fatin Irdina Zulhamidi   +7 more
doaj   +1 more source

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