Orange County Earthquake Map
See earthquakes of magnitude 3.5 and greater across Orange County and Southern California from the past 90 days, mapped live from USGS data.
Latest earthquakes near Orange County
The three most recent earthquakes of magnitude 2.0 and greater in and just off Orange County. Source: U.S. Geological Survey.
This map shows earthquakes of magnitude 3.5 and greater across Southern California over the past 90 days, from the U.S. Geological Survey (USGS). Bigger dots mean bigger quakes.
Zoom and pan to your part of the county. Orange County goes quiet for long stretches. If you see nothing near you, that usually means nothing has happened.
You can click into any dot to see that quake’s depth and the time it struck.
Map: Esri Disaster Response Program. Earthquake data from the U.S. Geological Survey. For official alerts, see USGS.
Looking for older quakes? The Southern California Earthquake Data Center keeps a list of significant California earthquakes since 1769.
The live feed covers quakes of magnitude 3.5 and above over the past 90 days. Smaller tremors — the ones you feel as a single sharp knock and nobody else mentions — aren’t on it. For every recorded quake down to magnitude 1.0, use the USGS Latest Earthquakes map.
Fault lines near you: the California Geological Survey’s Fault Activity Map shows every mapped fault in the state, and which ones have moved recently.
Liquefaction and landslide zones: the state’s Earthquake Zones of Required Investigation map shows where soil can behave like liquid in a quake, and where slopes are prone to sliding. Purchasing or selling property in one of these zones requires a disclosure.
Did you feel it? USGS builds its shaking maps partly from what residents report. If you felt something, you can tell them.
California’s fault lines
The California Geological Survey’s map of the state’s known faults, shaded by how recently each one moved.
Map: California Geological Survey, Fault Activity Map of California.
Is your home in a hazard zone? Look up your address on the state’s earthquake zones map, which shows fault, liquefaction and landslide zones.
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Earthquake resources
Right now
USGS latest earthquakes
See the full earthquake map, including smaller events that aren’t included in the map above.
Did you feel it?
Felt a tremor? Report it to the USGS to help them update their maps.
Get warned next time
MyShake
California’s free early-warning app notifies you seconds before an earthquake strikes.
ReadyOC
Sign up to receive county emergency alerts by text and phone.
Be ready
What to do before, during and after an earthquake
See our checklist on how to properly prepare and react to an earthquake in Orange County.
Seven steps to earthquake safety
Additional tips on earthquake preparedness for Californians from the Earthquake County Alliance.
Earthquake insurance
Learn more about the California Earthquake Authority, which provides residential insurance for homeowners and renters.
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