M2.9 earthquake 42km WSW of Encinitas, CA
A magnitude 2.9 earthquake struck 42km WSW of Encinitas, CA on Mon, Aug 17, 1987, 7:00 AM PDT (14:00 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M3.1 8km WSW of Newport Beach, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.9 (Mc), micro
- Magnitude from
- Southern California Seismic Network
- Local time
- UTC
- 1987-08-17 14:00:47 UTC
- Depth
- 5.1 km (3.2 mi), shallow
- Epicenter
- 32.944° N, 117.723° 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.
- Depth from
- Operator assigned
- Station coverage gap
- 203°, poorly surrounded by stations
- Stations used
- 0
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 102 in the 60 days after this one and 34 in the 30 days before it.
After
- 2.110km SSW of Huntington Beach, CA · 14291 days ago · 15 km deep · 81 km away
- 2.14km S of Huntington Beach, CA · 14291 days ago · 6 km deep · 83 km away
- 2.841km WSW of Encinitas, CA · 14291 days ago · 5 km deep · 1 km away
- 2.941km WSW of Encinitas, CA · 14291 days ago · 5 km deep · 0 km away
- 1.72km SSE of Aguanga, CA · 14290 days ago · 1 km deep · 97 km away
- 2.549km WSW of Carlsbad, CA · 14290 days ago · 5 km deep · 15 km away
- 3.18km WSW of Newport Beach, CA · 14290 days ago · 13 km deep · 76 km away
- 2.641km WSW of Encinitas, CA · 14290 days ago · 6 km deep · 1 km away
- 2.540km WSW of Carlsbad, CA · 14289 days ago · 6 km deep · 6 km away
- 2.735km WNW of La Jolla, CA · 14288 days ago · 5 km deep · 8 km away
- 3.043km WSW of Encinitas, CA · 14287 days ago · 6 km deep · 2 km away
- 2.210km ESE of Palomar Observatory, CA · 14287 days ago · 14 km deep · 99 km away
- 2.942km WSW of Encinitas, CA · 14287 days ago · 6 km deep · 1 km away
- 2.742km WSW of Carlsbad, CA · 14287 days ago · 5 km deep · 12 km away
- 2.536km W of La Jolla, CA · 14287 days ago · 5 km deep · 9 km away
- 2.640km WSW of Encinitas, CA · 14285 days ago · 6 km deep · 2 km away
- 2.323km SW of Laguna Beach, CA · 14285 days ago · 6 km deep · 53 km away
- 2.52km NW of Palomar Observatory, CA · 14283 days ago · 16 km deep · 92 km away
- 2.11km NW of Palomar Observatory, CA · 14283 days ago · 16 km deep · 92 km away
- 1.813km S of Rancho Palos Verdes, CA · 14283 days ago · 0 km deep · 99 km away
- 2.645km WSW of Carlsbad, CA · 14282 days ago · 6 km deep · 11 km away
- 2.638km WSW of Carlsbad, CA · 14281 days ago · 6 km deep · 5 km away
- 2.642km WSW of Encinitas, CA · 14281 days ago · 6 km deep · 2 km away
- 2.013km S of Rancho Palos Verdes, CA · 14280 days ago · 0 km deep · 99 km away
- 2.741km WSW of Carlsbad, CA · 14279 days ago · 5 km deep · 3 km away
- 2.744km WSW of Carlsbad, CA · 14278 days ago · 6 km deep · 3 km away
- 2.743km WSW of Carlsbad, CA · 14278 days ago · 6 km deep · 6 km away
- 2.337km WSW of Carlsbad, CA · 14277 days ago · 6 km deep · 7 km away
- 2.448km ENE of San Clemente Is. (SE tip), CA · 14275 days ago · 6 km deep · 19 km away
- 2.07km NNW of Aguanga, CA · 14275 days ago · 9 km deep · 98 km away
- 2.649km WSW of Carlsbad, CA · 14275 days ago · 6 km deep · 15 km away
- 2.750km WSW of Carlsbad, CA · 14275 days ago · 5 km deep · 15 km away
- 2.644km WSW of Carlsbad, CA · 14274 days ago · 6 km deep · 3 km away
- 2.412km NE of Trabuco Canyon, CA · 14273 days ago · 6 km deep · 91 km away
- 2.538km WSW of Carlsbad, CA · 14273 days ago · 5 km deep · 7 km away
- 2.642km WSW of Carlsbad, CA · 14272 days ago · 6 km deep · 3 km away
- 2.743km WSW of Encinitas, CA · 14271 days ago · 6 km deep · 2 km away
- 2.515km W of Coronado, CA · 14271 days ago · 6 km deep · 47 km away
- 2.739km WSW of Carlsbad, CA · 14270 days ago · 6 km deep · 3 km away
- 2.742km WSW of Carlsbad, CA · 14269 days ago · 5 km deep · 9 km away
- 2.939km WSW of Carlsbad, CA · 14269 days ago · 5 km deep · 6 km away
- 2.748km WSW of Carlsbad, CA · 14268 days ago · 6 km deep · 10 km away
- 2.740km WSW of Encinitas, CA · 14268 days ago · 6 km deep · 2 km away
- 2.55km NE of San Joaquin Hills, CA · 14267 days ago · 10 km deep · 78 km away
- 2.546km WSW of Carlsbad, CA · 14267 days ago · 6 km deep · 14 km away
- 2.53km NE of San Joaquin Hills, CA · 14266 days ago · 6 km deep · 76 km away
- 2.647km WSW of Carlsbad, CA · 14266 days ago · 6 km deep · 7 km away
- 2.548km WSW of Carlsbad, CA · 14265 days ago · 6 km deep · 13 km away
- 2.95km SSE of Coronado, CA · 14265 days ago · 12 km deep · 63 km away
- 2.94km SW of National City, CA · 14265 days ago · 10 km deep · 64 km away
- 1.95km SE of Coronado, CA · 14265 days ago · 5 km deep · 63 km away
- 2.743km WSW of Encinitas, CA · 14265 days ago · 6 km deep · 2 km away
- 2.85km SW of National City, CA · 14264 days ago · 10 km deep · 63 km away
- 2.65km SW of National City, CA · 14264 days ago · 10 km deep · 64 km away
- 2.948km WSW of Carlsbad, CA · 14263 days ago · 4 km deep · 9 km away
- 2.647km WSW of Carlsbad, CA · 14262 days ago · 6 km deep · 6 km away
- 2.55km SW of National City, CA · 14261 days ago · 11 km deep · 63 km away
- 2.84km SW of National City, CA · 14261 days ago · 9 km deep · 64 km away
- 2.814km SE of Tijuana, B.C., MX · 14261 days ago · 15 km deep · 94 km away
- 2.53km SW of National City, CA · 14260 days ago · 10 km deep · 64 km away
The first 60 of 102.
Before
- 2.744km WSW of Carlsbad, CA · 14292 days ago · 6 km deep · 12 km away
- 2.245km SW of San Clemente, CA · 14293 days ago · 6 km deep · 22 km away
- 2.528km WSW of Carlsbad, CA · 14294 days ago · 5 km deep · 17 km away
- 2.344km WSW of Carlsbad, CA · 14295 days ago · 5 km deep · 5 km away
- 2.647km WSW of Carlsbad, CA · 14295 days ago · 5 km deep · 8 km away
- 2.848km WSW of Carlsbad, CA · 14296 days ago · 6 km deep · 8 km away
- 2.547km WSW of Carlsbad, CA · 14297 days ago · 6 km deep · 15 km away
- 2.643km WSW of Encinitas, CA · 14298 days ago · 5 km deep · 2 km away
- 2.55km SW of National City, CA · 14300 days ago · 14 km deep · 64 km away
- 2.43km SW of National City, CA · 14300 days ago · 10 km deep · 64 km away
- 2.935km WSW of Encinitas, CA · 14302 days ago · 6 km deep · 7 km away
- 2.440km WSW of Carlsbad, CA · 14303 days ago · 6 km deep · 14 km away
- 2.842km WSW of Encinitas, CA · 14304 days ago · 6 km deep · 2 km away
- 3.346km WSW of Carlsbad, CA · 14305 days ago · 6 km deep · 6 km away
- 2.544km WSW of Carlsbad, CA · 14306 days ago · 6 km deep · 5 km away
- 3.248km WSW of Carlsbad, CA · 14306 days ago · 6 km deep · 6 km away
- 2.739km WSW of Encinitas, CA · 14307 days ago · 5 km deep · 4 km away
- 2.14km SSW of San Pedro, CA · 14308 days ago · 5 km deep · 100 km away
- 2.439km WSW of Encinitas, CA · 14309 days ago · 6 km deep · 2 km away
- 2.940km WSW of Carlsbad, CA · 14309 days ago · 6 km deep · 3 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ci621052. Read Sat, Oct 3, 2026, 4:37 AM UTC.