QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Soledad, CA

No earthquake was likely felt in Soledad in the 24 hours to 11:48 pm PST (07:48 UTC). The last one was M 3.0, 26 km (16 mi) N, at 2:58 pm PDT on 22 October 2026, estimated intensity II (weak) in town. Every earthquake near Soledad

This page: a magnitude 2.6 earthquake was recorded 23 km (14 mi) north-northeast of Soledad, CA, at 3:44 pm PDT on 15 March 2017 (22:44 UTC), 5.6 km deep. 1 person has reported feeling it to USGS.

USGS: 22 km NNE of Soledad, California

95 km (59 mi) SE of San Jose, CA · 40 km (25 mi) ESE of Salinas, CA

3:44 pm PDT, Mar 15, 2017 · · 5.6 km deep · released about 260 lb of TNT

10 km30 km60 km120 km N San Benito County 10 kmMonterey County 41 kmMerced County 79 kmSanta Clara County 82 kmSanta Cruz County 85 kmStanislaus County 108 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
3:44 pm PDT on 15 March 2017 ()
Where
23 km (14 mi) north-northeast of Soledad, CA · earthquakes near Soledad
Magnitude
M 2.6 (md)
Depth
5.6 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
San Benito County, 10 km E
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 3529 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 23 km (14 mi) from the epicentre. In Soledad, 23 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.

Likely felt in: Soledad 23 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 260 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 59,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 42,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.7× the energy of this one
  4. This earthquake M 2.6 about 260 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

The largest earthquake within 50 km since 2016 was M 4.2 on 2016-07-19 — about 250 times the energy of this one.

Before 2016, the USGS record lists 17 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.9 10 km SE of Tres Pinos, California · 15 km N of this epicentre
  2. 5.8 Near Paicines, California · 9 km NNW of this epicentre
  3. 5.5 7 km SW of Hollister, California · 32 km NW of this epicentre
  4. 5.5 12 km S of Tres Pinos, California · 13 km NW of this epicentre
  5. 5.5 3 km ENE of Tres Pinos, California · 24 km NNW 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 36.5993, -121.1988. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Benito County, CA 10 km (6 mi) E earthquakes near San Benito County
Monterey County, CA 41 km (26 mi) SSW earthquakes near Monterey County
Merced County, CA 79 km (49 mi) NNE earthquakes near Merced County
Santa Clara County, CA 82 km (51 mi) NNW earthquakes near Santa Clara County
Santa Cruz County, CA 85 km (53 mi) WNW earthquakes near Santa Cruz County
Stanislaus County, CA 108 km (67 mi) N earthquakes near Stanislaus County

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

Aftershocks so far

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

  1. 1.9 2 km ESE of Aromas, California
  2. 2.1 18 km SSE of Tres Pinos, California
  3. 2.6 21 km NE of Soledad, California
  4. 1.7 21 km NE of Soledad, California
  5. 2.3 Central California
  6. 1.7 5 km WNW of San Juan Bautista, California
  7. 2.4 4 km ENE of Tres Pinos, California
  8. 1.5 Central California
  9. 1.7 5 km ESE of Aromas, California
  10. 2.9 3 km ESE of Aromas, California
  11. 1.9 3 km WSW of San Juan Bautista, California
  12. 1.6 4 km ESE of Aromas, California
  13. 2.4 4 km ESE of Aromas, California
  14. 1.6 4 km ESE of Aromas, California
  15. 2.6 4 km ESE of Aromas, 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.