QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near King City, CA

No earthquake was likely felt in King City in the 24 hours to 2:47 pm PST (22:47 UTC). The last one was M 2.5, 14 km (8 mi) E, at 4:39 pm PDT on 29 September 2026, estimated intensity II (weak) in town. Every earthquake near King City

This page: a magnitude 1.6 earthquake was recorded 33 km (20 mi) east of King City, CA, at 6:45 am PDT on 25 May 2020 (13:45 UTC), 3.5 km deep.

USGS: 21km NE of San Ardo, CA

6:45 am PDT, May 25, 2020 · · 3.5 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Monterey County 50 kmSan Benito County 57 kmKings County 86 kmSan Luis Obispo County 91 kmMerced County 114 kmFresno County 119 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
6:45 am PDT on 25 May 2020 ()
Where
33 km (20 mi) east of King City, CA · earthquakes near King City
Magnitude
M 1.6 (md)
Depth
3.5 km below the surface
Felt
no reports yet
Nearest
Monterey County, 50 km W
Nearest mapped fault
San Andreas fault, under 1 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 2353 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 11 km (7 mi) from the epicentre. In King City, 33 km away, the estimate is intensity I (not felt). 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.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 19 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1983 Coalinga, California Earthquake · 41 km E of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 30 km SE of this epicentre
  3. 6.1 Northwest of Huron, California · 40 km NNE of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 15 km N of this epicentre
  5. 5.8 1934 Parkfield, California Earthquake · 37 km SSE 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 36.1693, -120.7652. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monterey County, CA 50 km (31 mi) W earthquakes near Monterey County
San Benito County, CA 57 km (35 mi) NNW earthquakes near San Benito County
Kings County, CA 86 km (53 mi) E earthquakes near Kings County
San Luis Obispo County, CA 91 km (57 mi) SSE earthquakes near San Luis Obispo County
Merced County, CA 114 km (71 mi) N earthquakes near Merced County
Fresno County, CA 119 km (74 mi) NE earthquakes near Fresno County

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

Aftershocks so far

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

  1. 1.6 16km SE of Pinnacles, CA
  2. 1.5 10km ESE of Pinnacles, CA
  3. 2.4 23km SE of Pinnacles, CA
  4. 1.6 16km NW of New Idria, CA
  5. 2.2 15km SE of Pinnacles, CA
  6. 1.8 17km NNW of Coalinga, CA
  7. 1.8 21km SSW of Cantua Creek, CA
  8. 1.9 23km ENE of San Ardo, CA
  9. 2.0 23km SE of Pinnacles, CA
  10. 1.8 5km NE of Coalinga, CA
  11. 2.4 16km WNW of Lake Nacimiento, CA
  12. 2.3 5km SSE of Parkfield, CA
  13. 1.7 8km NNE of New Idria, CA
  14. 2.4 9km SE of Pinnacles, CA
  15. 2.1 25km NW of Parkfield, 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.