Earthquake Tracker: Mapping the latest quakes in California and across the world

Quake Tracker

This earthquake map created in The Chronicle’s newsroom highlights quakes that have occurred in the past 30 days and focuses on epicenters in California. The data updates in real time and comes from the U.S. Geological Survey.

Last updated:

  • 3.2

    magnitude

    2 minutes ago

    Epicenter 4.6 miles northeast of Swall Meadows, California
  • 3.0

    magnitude

    13 hours ago

    Epicenter 14.6 miles northwest of Ukiah
  • 3.3

    magnitude

    March 5, 2021 6:33 p.m.

    Epicenter 19.9 miles northwest of Ridgecrest
  • 3.0

    magnitude

    March 5, 2021 9:36 a.m.

    Epicenter 51.5 miles west of Trinidad, California
  • 3.0

    magnitude

    March 4, 2021 10:52 p.m.

    Epicenter 20.4 miles southwest of Eureka
  • 8.1

    magnitude

    March 4, 2021 7:28 p.m.

    Epicenter 594.3 miles southwest of �Ohonua, Tonga
  • 7.4

    magnitude

    March 4, 2021 5:41 p.m.

    Epicenter 596.5 miles southwest of �Ohonua, Tonga
  • 3.0

    magnitude

    March 4, 2021 5:08 p.m.

    Epicenter 40.0 miles southwest of Eureka
  • 3.2

    magnitude

    March 4, 2021 3:53 p.m.

    Epicenter 10.0 miles northeast of Santa Rosa
  • 7.3

    magnitude

    March 4, 2021 1:27 p.m.

    Epicenter 108.5 miles northeast of Gisborne, New Zealand
  • 3.2

    magnitude

    March 1, 2021 10:26 p.m.

    Epicenter 14.7 miles southwest of Clearlake
  • 3.2

    magnitude

    March 1, 2021 4:36 p.m.

    Epicenter 52.1 miles west of Ferndale, California
  • 3.0

    magnitude

    February 28, 2021 2:18 p.m.

    Epicenter 34.9 miles southwest of Greenfield
  • 3.6

    magnitude

    February 28, 2021 1:46 p.m.

    Epicenter 4.5 miles southeast of Lone Pine, California
  • 3.2

    magnitude

    February 28, 2021 10:37 a.m.

    Epicenter 33.8 miles southwest of Greenfield
  • 3.1

    magnitude

    February 28, 2021 8:48 a.m.

    Epicenter 34.3 miles southwest of Greenfield
  • 3.8

    magnitude

    February 28, 2021 8:45 a.m.

    Epicenter 35.3 miles southwest of Greenfield
  • 3.1

    magnitude

    February 28, 2021 8:24 a.m.

    Epicenter 13.9 miles northeast of Mono City, California
  • 5.3

    magnitude

    February 27, 2021 6:59 p.m.

    Epicenter 8.5 miles northwest of Anchorage
  • 3.1

    magnitude

    February 27, 2021 8:17 a.m.

    Epicenter 11.7 miles northeast of Ridgecrest
  • 3.8

    magnitude

    February 25, 2021 7:30 p.m.

    Epicenter 14.3 miles southwest of Clearlake
  • 3.7

    magnitude

    February 22, 2021 1:38 a.m.

    Epicenter 30.6 miles southeast of San Jose
  • 3.0

    magnitude

    February 21, 2021 3:10 a.m.

    Epicenter 88.3 miles west of Petrolia, Calif.
  • 3.3

    magnitude

    February 21, 2021 1:20 a.m.

    Epicenter 42.8 miles northwest of Ridgecrest
  • 5.1

    magnitude

    February 20, 2021 9:15 p.m.

    Epicenter 174.7 miles west of Bandon, Oregon
  • 3.0

    magnitude

    February 19, 2021 8:52 a.m.

    Epicenter 31.2 miles northeast of Ridgecrest
  • 3.5

    magnitude

    February 19, 2021 12:13 a.m.

    Epicenter 8.3 miles northeast of Big Pine, California
  • 3.5

    magnitude

    February 14, 2021 11:42 p.m.

    Epicenter 31.1 miles northeast of Ridgecrest
  • 3.9

    magnitude

    February 14, 2021 11:57 a.m.

    Epicenter 3.5 miles southeast of Wilkerson, California
  • 7.0

    magnitude

    February 13, 2021 2:07 p.m.

    Epicenter 56.1 miles northeast of Namie, Japan
  • 5.3

    magnitude

    February 13, 2021 1:08 p.m.

    Epicenter 33.7 miles northwest of Akhiok, Alaska
  • 3.0

    magnitude

    February 13, 2021 12:11 a.m.

    Epicenter 43.6 miles northwest of Ridgecrest
  • 4.0

    magnitude

    February 12, 2021 11:57 p.m.

    Epicenter 43.4 miles northwest of Ridgecrest
  • 3.0

    magnitude

    February 12, 2021 5:07 p.m.

    Epicenter 13.4 miles northeast of Soledad
  • 7.7

    magnitude

    February 10, 2021 1:20 p.m.

    Epicenter 257.3 miles east of Vao, New Caledonia
  • 3.2

    magnitude

    February 8, 2021 12:45 a.m.

    Epicenter 11.5 miles northeast of San Jose
  • 3.3

    magnitude

    February 7, 2021 6:57 p.m.

    Epicenter 31.2 miles northeast of Ridgecrest

About the data

The Quake Tracker displays quakes from the past 30 days with magnitudes above 3.0 in Northern California, 4.0 in Southern California, 5.0 in the United States, and 7.0 anywhere in the world. Quakes below magnitude 3.0 are often not felt and do not appear on this map.

Intensity contours show how strongly a quake was felt and are displayed on the Quake Tracker when available. Rather than a gauge of pure shaking, intensity takes into account the effects on people and damage to infrastructure. The measure is designated using Roman numerals.

A quake at intensity III can be felt near the epicenter, but with no damage to structures. An intensity VII quake is widely felt and can destroy poorly built structures. At intensity VIII and beyond, structural engineers help determine how to categorize the quake based on observable damage, which can include rails bent, bridges destroyed and buildings shifted off their foundations.

Our optional fault layer shows approximate West Coast fault lines that have seen evidence of seismic activity in the last 150 years. These faults are considered “active” and are likely to cause another earthquake.

All data in this project comes from the U.S. Geological Survey. Visit the agency’s site to opt into its Earthquake Notification Service.


Credits

Newsroom Developers

Evan Wagstaff • evan.wagstaff@sfchronicle.com  • @evanwagstaff

Lucio Villa • lvilla@sfchronicle.com  • @luciovilla

Newsroom Artist

John Blanchard • jblanchard@sfchronicle.com

Managing Editor, Enterprise

Michael Gray • mgray@sfchronicle.com  • @GrayMikeG

Managing Editor, Digital

Tim O'Rourke • torourke@sfchronicle.com  • @TimothyORourke

Editor In Chief

Audrey Cooper • acooper@sfchronicle.com  • @audreycoopersf