QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

Earthquake near Mendota, CA

No earthquake was likely felt in Mendota in the 24 hours to 3:30 am PST (11:30 UTC). The last one was M 3.9, 74 km (46 mi) WSW, at 3:19 am PDT on 11 August 2026, estimated intensity II (weak) in town; 34 felt reports to USGS. Every earthquake near Mendota

This page: a magnitude 1.5 earthquake was recorded 12 km (8 mi) southwest of Mendota, CA, at 4:32 am PDT on 15 May 2026 (11:32 UTC), 5.9 km deep.

USGS: 12 km SW of Mendota, CA

62 km (39 mi) W of Fresno, CA · 48 km (30 mi) SW of Madera, CA

4:32 am PDT, May 15, 2026 · · 5.9 km deep · released about 5.7 lb of TNT

10 km30 km60 km120 km N San Benito County 55 kmMerced County 62 kmFresno County 74 kmMadera County 88 kmMonterey County 89 kmKings County 90 kmStanislaus County 109 kmMariposa County 112 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
4:32 am PDT on 15 May 2026 ()
Where
12 km (8 mi) southwest of Mendota, CA · earthquakes near Mendota
Magnitude
M 1.5 (md)
Depth
5.9 km below the surface
Felt
no reports yet
Nearest
San Benito County, 55 km W
Nearest mapped fault
Great Valley thrust fault system, 13 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 170 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 8 km (5 mi) from the epicentre. In Mendota, 12 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Firebaugh, San Joaquin.

How big was it?

This earthquake released about 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 5 earthquakes of M5 or more within 50 km:

  1. 6.1 Northwest of Huron, California · 22 km SSW of this epicentre
  2. 5.8 29 km NE of San Lucas, California · 49 km SSW of this epicentre
  3. 5.4 22 km SSW of Three Rocks, California · 40 km S of this epicentre
  4. 5.4 11 km NNW of Coalinga, California · 49 km S of this epicentre
  5. 5.0 28km NE of King City, CA · 49 km SW of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 36.6758, -120.4793. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 55 km (34 mi) W earthquakes near San Benito County
Merced County, CA 62 km (38 mi) NNW earthquakes near Merced County
Fresno County, CA 74 km (46 mi) E earthquakes near Fresno County
Madera County, CA 88 km (55 mi) NE earthquakes near Madera County
Monterey County, CA 89 km (55 mi) WSW earthquakes near Monterey County
Kings County, CA 90 km (56 mi) SE earthquakes near Kings County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

20 earthquakes have been recorded within 50 km since this one.

  1. 1.9 27 km SSW of Los Banos, CA
  2. 2.6 5 km WNW of Madera, CA
  3. 2.1 6 km E of Cantua Creek, CA
  4. 1.6 29 km SW of South Dos Palos, CA
  5. 1.1 29 km SW of South Dos Palos, CA
  6. 0.9 14 km E of Pinnacles, CA
  7. 1.8 15 km SSE of New Idria, CA
  8. 1.5 15 km WSW of Firebaugh, CA
  9. 1.6 31 km NE of Pinnacles, CA
  10. 2.0 32 km NE of Pinnacles, CA
  11. 1.8 14 km SW of Cantua Creek, CA
  12. 1.8 12 km SW of Cantua Creek, CA
  13. 1.9 19 km W of New Idria, CA
  14. 2.0 24 km NE of Pinnacles, CA
  15. 1.6 19 km NW of New Idria, CA

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.