EarthQuake Watch
California earthquakes, reported plainly.

Three earthquakes shake Mojave near Lavic Lake fault over three weeks

A sequence of three earthquakes between M3.5 and M4.1 struck the same point 26 km west-northwest of Ludlow, California between March 27 and April 17, 2026. The cluster sits in San Bernardino County, about 4 km from the mapped trace of the Lavic Lake fault. The largest event, an M4.1, was the first, on March 27 at 3:13 PM PDT.

All three events were very shallow, with depths between 1.3 and 1.6 kilometers. At such shallow depths, even moderate-magnitude earthquakes can produce pronounced local shaking.

USGS reviewed all three: the M4.1 on March 27 (58 "Did You Feel It?" reports), an M3.9 on April 1 (3 reports), and an M3.5 on April 17 (8 reports). Epicenters are within approximately 1 km of one another.

USGS PAGER estimated about 2,700 people were within range of light shaking (MMI ≥3) for the M4.1 main shock, with no population exposed to moderate shaking (MMI ≥5). PAGER issued a green alert. The sparse felt-report counts reflect the sparsely populated central Mojave setting.

USGS catalog data shows no other M4.1+ earthquakes within 20 km of this epicenter in the past 10 years.

Event data

USGS canonical event page →

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