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List of earthquakes in 2026
The list of earthquakes in 2026 covers notable worldwide quakes, led by a June magnitude 7.2 and 7.5 doublet in Venezuela that killed thousands and caused $19.6 billion in damage.
List of earthquakes in New Zealand
The list of earthquakes in New Zealand covers notable events in a country recording over 20,000 earthquakes a year, including the deadly 1931 Hawke's Bay earthquake.
List of earthquakes in the Levant
The list of earthquakes in the Levant covers earthquakes recorded in Syria, Lebanon, Israel, Palestine, and Jordan, most generated by the roughly 1,000-km-long Dead Sea Transform fault.
Modified Mercalli intensity scale
The Modified Mercalli intensity scale, also called the Mercalli scale, is a seismic scale used in the United States to describe shaking severity through observed effects on people and structures.
Mohorovičić discontinuity
The Mohorovičić discontinuity, usually shortened to the Moho, is the seismic boundary between Earth's crust and the underlying mantle, identified by Andrija Mohorovičić in 1909 from earthquake recordings near Zagreb.
October 2010 Sumatra earthquake
The October 2010 Sumatra earthquake was a magnitude 7.8 thrust quake off the Mentawai Islands, west of Sumatra, on 25 October 2010; its tsunami killed several hundred people.
P wave
The P wave, or primary wave, is the fastest seismic wave an earthquake produces, compressing rock parallel to its direction of travel and arriving first at seismic stations.
PhaseNet
PhaseNet is a deep-neural-network method that picks the arrival times of P and S waves from three-component seismic waveforms, introduced by Weiqiang Zhu and Gregory C. Beroza in 2018.
S wave
An S wave, or secondary wave, is a seismic body wave that shakes rock sideways, travels slower than the P wave, and cannot pass through liquids.
Seismic anisotropy
Seismic anisotropy is the dependence of seismic wave speeds on propagation direction, observed from the crust to the inner core and used to image mantle flow.
Seismic gap
A seismic gap is an active plate boundary segment with a history of large earthquakes that has stayed quiet long enough to be considered likely to rupture.
Seismic surface wave
A seismic surface wave is an elastic wave traveling along the Earth's surface, chiefly Rayleigh and Love waves, which arrive last from earthquakes and do the most damage.
Seismic wave
A seismic wave, also called an earthquake wave, is an elastic wave carrying energy from an earthquake or explosion through the Earth or along its surface.
Seismometer
A seismometer is an instrument that detects ground motion, most commonly the shaking produced by earthquakes, and is the sensing part of a seismograph, first developed in 1890.
Strong ground motion
Strong ground motion is the potentially damaging shaking of the ground or structures in an earthquake, recorded with accelerographs and analyzed for building codes and design.
Tiltmeter
A tiltmeter is a highly sensitive instrument that measures tiny changes in ground slope, used to monitor volcano deformation from moving magma, active faults, and dams.
Volcanic tremor
Volcanic tremor is a continuous seismic signal generated at volcanoes by the movement of magma, gas, or groundwater, lasting from minutes to days and widely used in eruption monitoring.
Wadati–Benioff zone
A Wadati–Benioff zone, also called the Benioff zone, is an inclined zone of earthquake foci tracing a subducting oceanic plate, reaching depths of about 700 km.