QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

Earthquake near King City, CA

USGS: 27 km NE of San Lucas, California

4:57 pm PDT, Aug 19, 2016 · · 12 km deep · released about 5.6 lb of TNT

10 km30 km60 km120 km N San Benito County 38 kmMonterey County 44 kmKings County 96 kmMerced County 97 kmSan Luis Obispo County 110 kmFresno County 116 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
4:57 pm PDT on 19 August 2016 ()
Where
29 km (18 mi) ENE of King City, CA · earthquakes near King City
Magnitude
M 1.5 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
San Benito County, 38 km NW
Nearest mapped fault
San Andreas fault, 5 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 3493 days ago

A magnitude 1.5 earthquake was recorded 29 km (18 mi) ENE of King City, CA, at 4:57 pm PDT on 19 August 2016 (23:57 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 5.6 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 2,700,000× 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 5.6 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 17 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1983 Coalinga, California Earthquake · 48 km ESE of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 48 km SE of this epicentre
  3. 6.1 Northwest of Huron, California · 29 km NE of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 7 km ESE of this epicentre
  5. 5.4 22 km SSW of Three Rocks, California · 30 km E 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 36.3292, -120.8387. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 38 km (24 mi) NW earthquakes near San Benito County
Monterey County, CA 44 km (27 mi) WSW earthquakes near Monterey County
Kings County, CA 96 km (60 mi) ESE earthquakes near Kings County
Merced County, CA 97 km (60 mi) N earthquakes near Merced County
San Luis Obispo County, CA 110 km (69 mi) SSE earthquakes near San Luis Obispo County
Fresno County, CA 116 km (72 mi) ENE earthquakes near Fresno County

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

Aftershocks so far

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

  1. 1.9 24 km ENE of Soledad, California
  2. 2.0 20 km SSE of Tres Pinos, California
  3. 1.6 20 km SSE of Tres Pinos, California
  4. 1.7 10 km N of Coalinga, California
  5. 2.1 23 km NE of Soledad, California
  6. 1.6 23 km NE of Soledad, California
  7. 2.1 21 km NE of Soledad, California
  8. 2.0 21 km NE of Soledad, California
  9. 2.0 28 km W of Three Rocks, California
  10. 1.9 12 km NW of Parkfield, California
  11. 2.0 21 km NW of Parkfield, California
  12. 1.7 23 km NE of Soledad, California
  13. 1.8 2 km SE of San Ardo, California
  14. 2.1 24 km NE of Greenfield, California
  15. 1.5 2 km SE of San Ardo, California

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.