QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Fort Irwin, CA

USGS: 27 km NNE of Fort Irwin, California

2:08 pm PST, Nov 10, 2019 · · 16 km deep · released about 170 lb of TNT

Every earthquake near Fort Irwin Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Bernardino County 76 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
2:08 pm PST on 10 November 2019 ()
Where
28 km (17 mi) NNE of Fort Irwin, CA · earthquakes near Fort Irwin
Magnitude
M 2.5 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
San Bernardino County, 76 km SSE
Nearest mapped fault
Garlock fault, 12 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 2516 days ago

A magnitude 2.5 earthquake was recorded 28 km (17 mi) NNE of Fort Irwin, CA, at 2:08 pm PST on 10 November 2019 (22:08 UTC). This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 35.4817, -116.5325. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Bernardino County, CA 76 km (48 mi) SSE earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 2.0 40km WSW of Tecopa, CA
  2. 2.6 20km S of Fort Irwin, CA
  3. 2.7 33km SW of Tecopa, CA
  4. 1.6 16km N of Fort Irwin, CA
  5. 2.5 37km WSW of Tecopa, CA
  6. 2.2 10km NW of Fort Irwin, CA
  7. 2.1 23km SSE of Fort Irwin, CA
  8. 3.0 23km SSE of Fort Irwin, CA
  9. 2.5 27km WSW of Baker, CA
  10. 1.6 30 km N of Fort Irwin, California
  11. 2.0 18km SSE of Fort Irwin, CA
  12. 1.8 17 km WSW of Tecopa, California
  13. 1.5 37km NNW of Fort Irwin, CA
  14. 1.8 17 km WNW of Fort Irwin, California
  15. 1.8 42km WSW of Tecopa, 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.