Earthquake · reviewed by a seismologist
M 1.7ml
Earthquake near Temecula, CA
No earthquake was likely felt in Temecula in the 24 hours to 8:12 pm PST (04:12 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 1.7 earthquake was recorded 9 km (6 mi) northeast of Temecula, CA, at 2:43 am PDT on 19 May 2018 (09:43 UTC), 13 km deep. 2 people have reported feeling it to USGS.
USGS: 7km E of Murrieta Hot Springs, CA
8 km (5 mi) NE of Temecula, CA · 133 km (83 mi) ESE of Los Angeles, CA
- When
- 2:43 am PDT on 19 May 2018 ()
- Where
- 9 km (6 mi) northeast of Temecula, CA · earthquakes near Temecula
- Magnitude
- M 1.7 (ml)
- Depth
- 13 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- San Diego County, 65 km SSE
- Nearest mapped fault
- Elsinore fault, 9 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 3031 days ago
Earthquake alerts for Temecula, CA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 1 km (1 mi) from the epicentre. In Temecula, 9 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.
Earthquakes near other towns within 30 km: Murrieta, Rainbow, Winchester, Wildomar, Menifee, Green Acres.
How big was it?
This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
- Magna, Utah 2020 M 5.7 930,000× the energy of this one
- Around the size people start to feel M 3.0 83× the energy of this one
- This earthquake M 1.7 about 11 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 4.4 on 2016-01-06 — about 10,000 times the energy of this one.
Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 The 1918 San Jacinto, California Earthquake · 26 km NNE of this epicentre
- 6.0 The 1910 Lake Elsinore, California Earthquake · 34 km WNW of this epicentre
- 5.3 6km SSE of Hemet, CA · 22 km NE of this epicentre
- 5.2 8km ENE of Trabuco Canyon, CA · 43 km WNW of this epicentre
- 5.2 10km ESE of Anza, CA · 48 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 33.5515, -117.0822. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Diego County, CA | 65 km (41 mi) | SSE | earthquakes near San Diego County |
| Orange County, CA | 66 km (41 mi) | WNW | earthquakes near Orange County |
| Riverside County, CA | 102 km (63 mi) | ENE | earthquakes near Riverside County |
| Los Angeles County, CA | 130 km (81 mi) | WNW | earthquakes near Los Angeles County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
55 earthquakes have been recorded within 50 km since this one.
- 1.5 8km NE of Aguanga, CA
- 1.8 5km ENE of Coto De Caza, CA
- 1.7 7km NW of Banning, CA
- 1.5 10km NE of Aguanga, CA
- 1.7 9km NE of Aguanga, CA
- 2.5 7km ENE of Aguanga, CA
- 1.6 10km S of Idyllwild, CA
- 1.8 8km NE of Aguanga, CA
- 3.0 11km NNW of Anza, CA
- 1.7 12km S of Hemet, CA
- 2.2 9km NE of Aguanga, CA
- 1.8 5km NW of San Jacinto, CA
- 1.8 7km NW of Lake Henshaw, CA
- 2.6 8km NE of Aguanga, CA
- 2.0 9km NE of Aguanga, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.