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Seismology

Earthquakes Earthquake Measurement Earthquake Magnitude Earthquake Monitoring Tectonics Earthquake Engineering Earthquake Prediction Seismic Waves Seismic Activity Aftershocks

Magnitude 4.2 Earthquake Shakes Puget Sound Near Wauna

Seismologists released aftershock probabilities and agencies reported no tsunami threat.

Small Offshore Quake Rattles Hermosa Beach Area

M6.6 Shallow Earthquake Strikes Near New Caledonia’s Loyalty Islands

Study Finds 1,399 Earthquakes at North Korea’s Mount Mantap After 2017 Test

3.1-Magnitude Quake Rattles Area Southeast of Compton

Magnitude 3.0 Earthquake Shakes Brentwood Area

Swarm of 90 Micro‑Quakes Shakes Lennox and Westmont

Surge of Dozen‑Plus Quakes Rattles Pacific Ring of Fire

Magnitude 3.2 Quake Shakes Compton Area

USGS Recalculation Raises Bay Area 30‑Year Quake Odds to 74.1%

3.6-Magnitude Quake Shakes Falls City Area

Small Cluster of Shallow M3–M4 Quakes Rattles Chiapas and Parts of Peru

Seismic Images Show Cascadia Slab Breaking Into Fragments

3.4 Magnitude Earthquake Shakes Illawarra Near Menangle Road

Small Earthquakes Recorded Near Lake Constance and Neunkirchen

Multiple Small Earthquakes Recorded Offshore Chiapas; No Damage Reported

2.2-Magnitude Earthquake Shakes Grimsby

Low‑Magnitude Quakes Shake Southern Mexico as Separate 5.9 Temblor Injures Dozens Near Tokyo

New Field Evidence Suggests San Andreas Fault Is Slipping Faster

Strong Earthquake Strikes Ayacucho Near Coracora