Science ❯ Geology ❯ Seismology

Earthquake Measurement

Magnitude Scale Magnitude Richter Scale US Geological Survey Magnitude Scales Impact Assessment Tsunami Generation USGS Seismic Waves Magnitude and Depth

Preliminary Magnitude 3.6 Quake Strikes Near Alamo, No Damage Reported

With USGS measurements still provisional, seismologists are monitoring data and urging residents to prepare for possible aftershocks.

4.1-Magnitude Earthquake Shakes Las Vegas Valley

Cluster of Shallow Quakes Rattles Northern California Coast

Deep M6.1 Earthquake Shakes Offshore Calabria

Magnitude 6.0 Earthquake Shakes Hawaii’s Big Island

Magnitude 6.7 Quake Off Ofunato Jolts Tohoku With No Tsunami Threat

Brawley Earthquake Swarm Eases After 350-Plus Quakes With Magnitude 4.7 Peak

Magnitude 3.3–3.4 Quake Near Redlands Shakes Inland Empire

Magnitude 3.3 Earthquake Shakes Redlands Area Near Riverside

Moderate Quake Rattles Western Nevada Near Silver Springs

Magnitude 4.1 Earthquake Recorded Near Leh, Ladakh

Magnitude 4.1 Quake Shakes Odisha’s Kalahandi District

Earthquake Near Afghan–Tajik Border Jolts Islamabad and KP

Magnitude 6.2 Quake Shakes Hokkaido With No Tsunami Warning

Sixteen Quakes Rattle Lugo in 15 Minutes, No Damage Reported

Two Small Quakes Strike Near San Francisco Zoo

Tsunami Warnings Lifted After Strong Quake Off Northeast Japan

Magnitude 5.2 Quake Jolts Manipur’s Kamjong

Deep Hindu Kush Quakes Send Tremors Across India and Pakistan

Light Earthquake Shakes Leipzig Area With No Damage Expected