M2.1 earthquake 39km WSW of Encinitas, CA
A magnitude 2.1 earthquake struck 39km WSW of Encinitas, CA on Sat, Aug 28, 2021, 7:21 AM PDT (14:21 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M2.7 33km WSW of La Jolla, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (ML, local (Richter)), micro
- Magnitude from
- Southern California Seismic Network
- Local time
- UTC
- 2021-08-28 14:21:47 UTC
- Depth
- 14.9 km (9.3 mi), shallow
- Epicenter
- 32.965° N, 117.706° W
- Region
- California
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 0.5 km horizontally, 1.1 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 193°, poorly surrounded by stations
- Stations used
- 29
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 5 in the 30 days before it.
After
- 1.83km SSE of Garden Grove, CA · 1863 days ago · 15 km deep · 90 km away
- 1.730km SW of Dana Point, CA · 1856 days ago · 14 km deep · 46 km away
- 2.030km SW of Dana Point, CA · 1856 days ago · 13 km deep · 45 km away · felt by 2
- 2.72km WNW of Lake Henshaw, CA · 1853 days ago · 6 km deep · 91 km away · felt by 7
- 1.85km NE of Wildomar, CA · 1846 days ago · 15 km deep · 86 km away · felt by 4
- 1.629km WSW of Camp Pendleton South, CA · 1845 days ago · 11 km deep · 17 km away
- 2.35km NE of Wildomar, CA · 1843 days ago · 14 km deep · 86 km away · felt by 7
- 1.511km NW of Julian, CA · 1838 days ago · 18 km deep · 96 km away
- 1.97km ESE of San Pedro, CA · 1836 days ago · 9 km deep · 96 km away
- 1.839km WSW of Carlsbad, CA · 1825 days ago · 3 km deep · 6 km away
- 1.78km ESE of San Pedro, CA · 1819 days ago · 9 km deep · 95 km away · felt by 1
- 2.010km W of Palomar Observatory, CA · 1815 days ago · 6 km deep · 82 km away
- 2.010km E of Pala, CA · 1815 days ago · 6 km deep · 82 km away · felt by 1
- 2.733km WSW of La Jolla, CA · 1805 days ago · 18 km deep · 30 km away · felt by 5
- 1.77km NW of Lakeland Village, CA · 1804 days ago · 8 km deep · 84 km away
Before
- 1.94km NE of Temecula, CA · 1868 days ago · 9 km deep · 83 km away
- 1.916km NNE of Avalon, CA · 1869 days ago · 17 km deep · 76 km away
- 1.52km WSW of Costa Mesa, CA · 1887 days ago · 10 km deep · 80 km away
- 1.913km W of Carlsbad, CA · 1887 days ago · 13 km deep · 28 km away
- 2.743km WSW of Encinitas, CA · 1892 days ago · 14 km deep · 4 km away · felt by 5
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci40025432. Read Sun, Oct 4, 2026, 12:39 PM UTC.