Science ❯ Geology ❯ Seismology ❯ Earthquake Measurement

US Geological Survey

3.8-Magnitude Quake Rattles Communities Near Piru in Ventura County

USGS says the shallow temblor produced widespread reports of shaking and represents the strongest local quake in recent weeks.

Magnitude 3.5 Earthquake Strikes Near Larkfield‑Wikiup

3.4-Magnitude Quake Shakes Inland Empire Near Ontario

Magnitude 4.3 Earthquake Strikes Near Cloverdale in Sonoma County

Magnitude 5.0 Earthquake Strikes Texas Panhandle

7.3‑Magnitude Quake Strikes Off Chiapas Coast and Triggers Local Tsunami Warnings

Earthquake Near Te Anau Triggers Evacuations as Tsunami Warning Is Downgraded

3.7-Magnitude Quake Rattles San Benito County

Twin 7.2 and 7.5 Quakes Devastate Northern Venezuela

Shallow M6.1 Earthquake Off Western Cuba Shakes Cuba, Florida and Mexico

Magnitude 3.3 Earthquake Shakes Redlands Area Near Riverside

Magnitude 3.5 Earthquake Rattles Saratoga Springs, Felt Across Northern Utah

Overnight 4.2 Jolts Indio Area as Aftershock Swarm Follows 4.9 Quake

6.5-Magnitude Quake in Mexico Kills Two, Triggers Evacuations From Guerrero to Mexico City

San Ramon Logs 300-Plus Quakes in Ongoing Swarm as USGS Sees No Sign of Major Fault Rupture

Magnitude 4.1–4.2 Quake Near Glen Ellen Rattles Sonoma County

Howard Community College Links Water Main Break to 2.5-Magnitude Columbia Quake

Preliminary 3.2 Quake Rattles East Bay Near Briones Early Sunday

Great ShakeOut Engages 10 Million Californians as Small Berkeley Quake Underscores Risk

Magnitude 3.5 Earthquake Strikes North of Big Bear Late Saturday