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earthquakes

Map of Costa Rice showing results from the ASTUTI network for a magnitude 5.2 earthquake.
Posted inEditors' Highlights

Good, Soon, and Cheap – Earthquake Early Warning by Smartphone

by Peter Zeitler 8 July 202117 November 2021

Fixed smartphone networks can provide robust early warning of earthquakes at far lower costs than traditional scientific arrays, which is an important consideration for regions with limited resources.

Plot showing complementary strengths and weaknesses of existing and emerging seismic instrumentation for earthquake response.
Posted inEditors' Highlights

Aftershocks and Fiber Optics

by Thorsten W. Becker 28 June 202114 May 2024

Internet cables can be transformed into a string of dense seismic sensors, and this approach has now been shown to be highly useful for quickly monitoring seismicity after major earthquakes.

Photograph of the memorial for the Tohoku-oki earthquake and its victims in Yuriage, Japan.
Posted inEditors' Vox

Learning from a Disastrous Megathrust Earthquake

by N. Uchida and R. Bürgmann 22 June 202110 October 2021

Ten years of interdisciplinary studies since the disastrous Tohoku-oki earthquake have improved our knowledge of earthquake-cycle processes and hazard, but prediction of such events remains elusive.

Aftermath of the 2011 Tōhoku-oki earthquake in Japan
Posted inResearch Spotlights

A New Approach to Calculate Earthquake Slip Distributions

by Morgan Rehnberg 4 June 202124 May 2022

A transdimensional, probabilistic approach is more flexible than traditional least squares fits and provides better handling of sharply varying slip distributions.

Figure illustrating how earthquake-induced infrasonic acoustic waves are generated at solid-air or water-air interfaces.
Posted inEditors' Highlights

Earthquake Rupture Solution is Up in the Air

by T. Parsons 28 May 202119 October 2021

Perhaps the most complex earthquake rupture ever studied is further constrained by signals from Earth’s ionosphere.

Figure showing a thermal model of a subduction zone with the relatively cold (blue) oceanic plate sinking into the comparatively hot (red) mantle.
Posted inEditors' Highlights

Diamonds Are at Fault

by V. Salters 26 May 202122 September 2022

Deep-seated earthquakes in subduction zones are related to diamond formation.

Vivien He holds an earthquake early-warning device in her bathroom workspace.
Posted inNews

High School Junior Builds Cheap Earthquake Warning Device

by Jack Lee 14 May 20215 April 2023

The project exploring seismic noise during the coronavirus pandemic was fueled by Google searches and bathroom soldering sessions.

Plot showing magnitude of earthquakes before and after the inferred triggering time in southern California.
Posted inEditors' Highlights

Earthquake Rates Enhanced by Triggered Creep

by Thorsten W. Becker 13 May 202113 January 2022

Analysis of California earthquakes solidifies links between shaking due to remote earthquakes and increased local earthquake activity that persists for times longer than for regular aftershocks.

Two maps of the Japanese islands showing distribution of volcanoes (top) and areas of large crustal earthquakes analyzed in this study (bottom).
Posted inEditors' Highlights

The First Systematic Search for Enervated Earthquakes

by Satoshi Ide 11 May 20218 December 2022

High quality data from Japan provides answers on where and when “enervated” earthquakes occur.

Map of the eastern Mediterranean showing modeled wave height from a magnitude 7.7 normal fault earthquake sourced offshore of southern Crete.
Posted inEditors' Highlights

Was the AD 365 Mediterranean Earthquake Normal?

by T. Parsons 10 May 202114 September 2022

The great AD 365 earthquake at Crete has implied a locked Hellenic subduction zone that can produce more earthquakes to threaten Mediterranean coastlines. But what if wasn’t a subduction zone event?

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