California Earthquake Map

Our real-time Quake Tracker was developed in the Chronicle’s newsroom. It highlights earthquakes that have occurred in the past 30 days and focuses on epicenters in California.

Last updated: May 18, 2024 11:10 p.m.

• 4.0

  magnitude

  May 15, 2024 6:39 a.m.

  
  Epicenter 8.5 miles southeast of Bayside

  Shakemap

• 3.1

  magnitude

  May 14, 2024 10:45 p.m.

  
  Epicenter 17.4 miles northwest of Ukiah

• 4.2

  magnitude

  May 13, 2024 4:02 a.m.

  
  Epicenter 11.7 miles southeast of Puebla

  Shakemap

• 4.6

  magnitude

  May 12, 2024 7:04 p.m.

  
  Epicenter 11.8 miles northwest of Guadalupe Victoria

  Shakemap

• 4.0

  magnitude

  May 12, 2024 6:33 p.m.

  
  Epicenter 12.2 miles northwest of Guadalupe Victoria

  Shakemap

• 4.9

  magnitude

  May 12, 2024 6:22 p.m.

  
  Epicenter 11.8 miles southeast of Puebla

  Shakemap

• 4.1

  magnitude

  May 8, 2024 1:14 a.m.

  
  Epicenter 11.4 miles northwest of Guadalupe Victoria

  Shakemap

• 3.0

  magnitude

  May 5, 2024 2:09 p.m.

  
  Epicenter near off the coast of Northern California

• 5.2

  magnitude

  May 5, 2024 8:27 a.m.

  
  Epicenter near south of Alaska

  Shakemap

• 5.0

  magnitude

  May 3, 2024 3:03 a.m.

  
  Epicenter near Vancouver Island, Canada region

• 4.1

  magnitude

  May 1, 2024 8:49 p.m.

  
  Epicenter 6.3 miles southwest of Corona

  Shakemap

• 3.1

  magnitude

  April 24, 2024 1:35 p.m.

  
  Epicenter 39.6 miles southwest of Eureka

• 3.2

  magnitude

  April 19, 2024 4:51 a.m.

  
  Epicenter 26.4 miles northeast of Arvin

• 4.3

  magnitude

  April 18, 2024 7:19 p.m.

  
  Epicenter 26.5 miles northeast of Arvin

  Shakemap

• 5.6

  magnitude

  April 18, 2024 3:12 p.m.

  
  Epicenter near the Gulf of California

  Shakemap

• 3.5

  magnitude

  April 18, 2024 9:33 a.m.

  
  Epicenter near off the coast of Northern California

• 5.2

  magnitude

  April 18, 2024 7:39 a.m.

  
  Epicenter near the Gulf of California

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 in North America. 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 fault lines from the USGS that cross the Bay Area 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.