QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Earthquake near Temecula, CA

No earthquake was likely felt in Temecula in the 24 hours to 4:12 am PST (12:12 UTC). The last one was M 2.4, 4 km (2 mi) NE, at 3:31 am PDT on 5 September 2026, estimated intensity II (weak) in town; 86 felt reports to USGS. Every earthquake near Temecula

This page: a magnitude 2.6 earthquake was recorded 11 km (7 mi) east of Temecula, CA, at 6:11 am PST on 17 February 2017 (14:11 UTC), 18 km deep. 31 people have reported feeling it to USGS.

USGS: 11km E of Temecula, CA

9 km (6 mi) E of Temecula, CA · 141 km (88 mi) ESE of Los Angeles, CA

6:11 am PST, Feb 17, 2017 · · 18 km deep · released about 220 lb of TNT

10 km30 km60 km120 km N San Diego County 56 kmOrange County 72 kmRiverside County 99 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
6:11 am PST on 17 February 2017 ()
Where
11 km (7 mi) east of Temecula, CA · earthquakes near Temecula
Magnitude
M 2.6 (ml)
Depth
18 km below the surface
Felt
31 reports · strongest reported intensity IV
Nearest
San Diego County, 56 km SSE
Nearest mapped fault
Elsinore fault, 6 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 3467 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 15 km (9 mi) from the epicentre. In Temecula, 11 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: Temecula 11 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 220 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 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× the energy of this one
  4. This earthquake M 2.6 about 220 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 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1918 San Jacinto, California Earthquake · 32 km N of this epicentre
  2. 6.0 The 1910 Lake Elsinore, California Earthquake · 42 km NW of this epicentre
  3. 5.3 6km SSE of Hemet, CA · 26 km NNE of this epicentre
  4. 5.3 18km ESE of Anza, CA · 49 km E of this epicentre
  5. 5.2 10km ESE of Anza, CA · 43 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 33.4815, -117.0303. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Diego County, CA 56 km (35 mi) SSE earthquakes near San Diego County
Orange County, CA 72 km (45 mi) WNW earthquakes near Orange County
Riverside County, CA 99 km (62 mi) ENE earthquakes near Riverside County
Los Angeles County, CA 139 km (86 mi) NW earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 1.6 8 km NE of Aguanga, California
  2. 2.1 7 km NE of Aguanga, California
  3. 2.5 Southern California
  4. 1.7 5 km W of Meadowbrook, California
  5. 1.6 15 km SSW of Alpine Village, California
  6. 1.8 13 km SSW of Aguanga, California
  7. 1.8 8km E of Palomar Observatory, CA
  8. 1.8 6km ESE of Valle Vista, CA
  9. 1.9 5km SSW of Idyllwild, CA
  10. 1.6 6km NE of Anza, CA
  11. 1.8 8km NE of Aguanga, CA
  12. 2.1 8km NE of Aguanga, CA
  13. 1.8 8km NE of Aguanga, CA
  14. 1.5 8km NE of Aguanga, CA
  15. 1.5 7km S of Idyllwild, 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.