Science ❯ Geology ❯ Seismology ❯ Earthquake Measurement

Magnitude Scale

2.3 Earthquake Near Sleepy Hollow Triggers Hundreds of Felt Reports, No Damage

Officials report no damage, with precautionary surveys underway at the former Indian Point site.

Magnitude 3.4 Earthquake Shakes Columbia, South Carolina Area

4.1 Quake Strikes Geysers Area; 2.9 Aftershock Follows in North Bay

Magnitude 3.6 Earthquake Rattles West Valley City on Friday Evening

Magnitude 3.5 Earthquake Rattles Saratoga Springs, Felt Across Northern Utah

Earthquake Swarm Near San Ramon Sends M4.2 Jolt, Triggers BART Inspections

Magnitude 4.2 Quake Near Great Falls Shakes Montana as Malmstrom AFB Reports No Damage

Overnight 4.2 Jolts Indio Area as Aftershock Swarm Follows 4.9 Quake

USGS Confirms Two Minor Quakes in Southern New England on Wednesday

Strong, Shallow Quake Shakes Japan’s Shimane Prefecture as JMA Warns of Aftershocks

Small Earthquake Shakes Milford, New Hampshire, Overnight

Magnitude-7.0 Offshore Quake Shakes Northern Taiwan With Limited Damage

Three Quakes Jolt San Ramon as USGS Revises Largest to Magnitude 4.0

Rapid Earthquake Swarm Rattles San Ramon With Two Magnitude 4.0 Quakes

Magnitude 3.1 Quake Rattles San Ramon, Extends East Bay Swarm

Magnitude 4.1–4.2 Quake Near Glen Ellen Rattles Sonoma County

Japan Issues Rare Megaquake Advisory as Injuries Rise After M7.5 Off Northern Coast

San Ramon Quake Swarm Flares Up, Rattles Oakland With New Jolts

Tsunami Warnings Lifted After Powerful Quake Off Northeast Japan

USGS Investigates False 5.9 Nevada Quake Alert That Lit Up Phones Across California