Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Valle Vista, CA
No earthquake was likely felt in Valle Vista in the 24 hours to 2:57 am PST (10:57 UTC). The last one was M 2.2, 9 km (6 mi) NW, at 8:52 pm PDT on 14 October 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Valle Vista
This page: a magnitude 1.9 earthquake was recorded 6 km (4 mi) north of Valle Vista, CA, at 11:18 am PDT on 9 October 2017 (18:18 UTC), 12 km deep. 1 person has reported feeling it to USGS.
USGS: 6km N of Valle Vista, CA
10 km (6 mi) SE of Beaumont, CA · 142 km (89 mi) E of Los Angeles, CA
- When
- 11:18 am PDT on 9 October 2017 ()
- Where
- 6 km (4 mi) north of Valle Vista, CA · earthquakes near Valle Vista
- Magnitude
- M 1.9 (ml)
- Depth
- 12 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Riverside County, 82 km E
- Nearest mapped fault
- San Jacinto fault, 4 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 3304 days ago
Earthquake alerts for Valle Vista, 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 9 km (6 mi) from the epicentre. In Valle Vista, 6 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: Valle Vista 6 km, intensity II · San Jacinto 7 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
- Magna, Utah 2020 M 5.7 520,000× the energy of this one
- Around the size people start to feel M 3.0 46× the energy of this one
- This earthquake M 1.9 about 21 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 5,600 times the energy of this one.
Before 2016, the USGS record lists 21 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 The 1918 San Jacinto, California Earthquake · 9 km WSW of this epicentre
- 6.3 The 1992 Big Bear, California Earthquake · 45 km N of this epicentre
- 6.2 3 km SE of San Bernardino, California · 46 km NW of this epicentre
- 6.0 The 1910 Lake Elsinore, California Earthquake · 49 km WSW of this epicentre
- 6.0 The 1986 North Palm Springs, California Earthquake · 34 km NE 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 33.8055, -116.8887. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Riverside County, CA | 82 km (51 mi) | E | earthquakes near Riverside County |
| Orange County, CA | 83 km (52 mi) | W | earthquakes near Orange County |
| San Diego County, CA | 88 km (54 mi) | S | earthquakes near San Diego County |
| San Bernardino County, CA | 134 km (83 mi) | NNE | earthquakes near San Bernardino 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.
- 1.8 9km NE of Aguanga, CA
- 1.8 16km SSE of Hemet, CA
- 1.6 8km NE of Aguanga, CA
- 1.7 6km SSE of Beaumont, CA
- 1.7 9km NE of Aguanga, CA
- 2.2 9km NE of Aguanga, CA
- 2.4 9km NE of Aguanga, CA
- 1.6 2km ESE of Loma Linda, CA
- 2.1 2km NNE of Loma Linda, CA
- 1.5 8km NE of Aguanga, CA
- 2.1 8km NE of Aguanga, CA
- 1.6 9km NE of Aguanga, CA
- 1.8 10km SE of Anza, CA
- 2.5 9km NE of Aguanga, CA
- 1.6 5km SSW of Redlands, 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.