M1.7 earthquake 20km ENE of Pinnacles, CA
A magnitude 1.7 earthquake struck 20km ENE of Pinnacles, CA on Mon, Jul 27, 2020, 11:39 PM PDT (06:39 UTC), 11 km (7 mi) below the surface.
A larger quake followed: M3.9 22km NE of San Ardo, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (Md, duration), micro
- Magnitude from
- Northern California Seismic System
- Local time
- UTC
- 2020-07-28 06:39:15 UTC
- Depth
- 10.6 km (6.6 mi), shallow
- Epicenter
- 36.574° N, 120.930° 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 0.3 km horizontally, 1.3 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 109°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 105 in the 60 days after this one and 65 in the 30 days before it.
After
- 2.323km NNW of San Simeon, CA · 2258 days ago · 12 km deep · 91 km away
- 3.922km NE of San Ardo, CA · 2258 days ago · 9 km deep · 45 km away · felt by 131
- 2.122km NE of San Ardo, CA · 2257 days ago · 8 km deep · 46 km away
- 1.922km NNE of San Ardo, CA · 2257 days ago · 8 km deep · 45 km away
- 2.022km NE of San Ardo, CA · 2257 days ago · 9 km deep · 46 km away
- 1.614km SE of Lopez Point, CA · 2256 days ago · 4 km deep · 88 km away
- 1.822km NE of San Lucas, CA · 2256 days ago · 8 km deep · 35 km away
- 2.04km W of San Juan Bautista, CA · 2255 days ago · 6 km deep · 66 km away · felt by 2
- 2.14km ESE of Tres Pinos, CA · 2254 days ago · 10 km deep · 38 km away
- 1.617km N of Lopez Point, CA · 2254 days ago · 10 km deep · 73 km away
- 1.924km NE of King City, CA · 2253 days ago · 8 km deep · 23 km away
- 2.110km SSW of Tres Pinos, CA · 2253 days ago · 4 km deep · 40 km away
- 2.17km SSW of Gilroy, CA · 2253 days ago · 5 km deep · 72 km away
- 1.811km SE of Pinnacles, CA · 2252 days ago · 5 km deep · 16 km away
- 1.511km SE of Pinnacles, CA · 2252 days ago · 1 km deep · 17 km away
- 3.018km S of Cantua Creek, CA · 2252 days ago · 7 km deep · 58 km away · felt by 7
- 2.322km ENE of San Lucas, CA · 2248 days ago · 6 km deep · 41 km away
- 1.613km S of Tres Pinos, CA · 2248 days ago · 4 km deep · 34 km away
- 2.113km S of Tres Pinos, CA · 2248 days ago · 4 km deep · 34 km away
- 1.79km W of San Ardo, CA · 2247 days ago · 10 km deep · 61 km away
- 2.83km ESE of Aromas, CA · 2246 days ago · 6 km deep · 69 km away · felt by 7
- 2.34km ESE of Aromas, CA · 2246 days ago · 6 km deep · 69 km away
- 2.03km N of Hollister, CA · 2245 days ago · 9 km deep · 54 km away
- 1.76km NNE of Los Banos, CA · 2243 days ago · 5 km deep · 60 km away
- 1.621km NE of San Lucas, CA · 2242 days ago · 6 km deep · 35 km away
- 1.719km SE of Pinnacles, CA · 2242 days ago · 8 km deep · 19 km away
- 2.223km WSW of New Idria, CA · 2239 days ago · 7 km deep · 30 km away
- 1.622km ENE of San Lucas, CA · 2239 days ago · 9 km deep · 42 km away
- 1.814km N of Point Sur, CA · 2239 days ago · 8 km deep · 90 km away
- 1.911km NNE of Coalinga, CA · 2239 days ago · 5 km deep · 66 km away
- 1.812km N of Coalinga, CA · 2239 days ago · 9 km deep · 63 km away
- 2.124km NNW of San Simeon, CA · 2239 days ago · 10 km deep · 90 km away
- 1.723km NE of San Ardo, CA · 2239 days ago · 8 km deep · 45 km away
- 2.810km NW of Parkfield, CA · 2237 days ago · 11 km deep · 77 km away · felt by 2
- 2.610km SE of Pinnacles, CA · 2236 days ago · 7 km deep · 16 km away · felt by 1
- 1.612km SE of Pinnacles, CA · 2236 days ago · 6 km deep · 15 km away
- 2.111km NE of San Simeon, CA · 2236 days ago · 8 km deep · 98 km away
- 3.122km NE of San Ardo, CA · 2236 days ago · 9 km deep · 48 km away · felt by 6
- 2.322km NE of San Ardo, CA · 2236 days ago · 9 km deep · 48 km away
- 1.825km NW of San Simeon, CA · 2234 days ago · 7 km deep · 94 km away
- 2.77km ESE of Huron, CA · 2232 days ago · 3 km deep · 92 km away · felt by 2
- 1.69km NNE of Gonzales, CA · 2231 days ago · 1 km deep · 44 km away
- 1.87km SSW of Gonzales, CA · 2231 days ago · 8 km deep · 51 km away
- 1.79km SSE of San Juan Bautista, CA · 2231 days ago · 5 km deep · 55 km away
- 2.024km WSW of Los Banos, CA · 2230 days ago · 1 km deep · 51 km away
- 1.79km NE of San Martin, CA · 2230 days ago · 6 km deep · 82 km away
- 2.52km ENE of Aromas, CA · 2230 days ago · 5 km deep · 71 km away · felt by 23
- 1.926km NW of San Simeon, CA · 2229 days ago · 3 km deep · 96 km away
- 2.32km NE of Pinnacles, CA · 2229 days ago · 3 km deep · 18 km away
- 2.316km SSE of Tres Pinos, CA · 2229 days ago · 3 km deep · 32 km away · felt by 2
- 1.79km SSW of Carmel By The Sea, CA · 2229 days ago · 9 km deep · 91 km away
- 2.04km ESE of Aromas, CA · 2229 days ago · 6 km deep · 68 km away
- 2.25km ENE of Pinnacles, CA · 2228 days ago · 10 km deep · 15 km away
- 1.820km NW of Parkfield, CA · 2228 days ago · 4 km deep · 68 km away
- 1.814km S of Tres Pinos, CA · 2227 days ago · 4 km deep · 34 km away
- 2.210km S of Tres Pinos, CA · 2227 days ago · 3 km deep · 39 km away
- 1.84km ESE of Aromas, CA · 2227 days ago · 6 km deep · 69 km away
- 2.212km NW of Pinnacles, CA · 2226 days ago · 5 km deep · 27 km away
- 2.35km ENE of Pinnacles, CA · 2225 days ago · 10 km deep · 15 km away
- 1.58km N of Pinnacles, CA · 2225 days ago · 8 km deep · 18 km away
The first 60 of 105.
Before
- 2.011km NW of Pinnacles, CA · 2260 days ago · 8 km deep · 26 km away
- 1.912km SSE of Tres Pinos, CA · 2260 days ago · 7 km deep · 34 km away
- 1.616km SE of Pinnacles, CA · 2261 days ago · 0 km deep · 17 km away
- 1.711km SE of Tres Pinos, CA · 2261 days ago · 8 km deep · 31 km away
- 2.912km SSE of Tres Pinos, CA · 2262 days ago · 5 km deep · 34 km away · felt by 5
- 2.43km ESE of Aromas, CA · 2263 days ago · 6 km deep · 70 km away · felt by 2
- 3.02km SE of Aromas, CA · 2263 days ago · 7 km deep · 70 km away · felt by 88
- 2.92km ESE of Aromas, CA · 2263 days ago · 7 km deep · 70 km away · felt by 19
- 1.711km N of San Simeon, CA · 2263 days ago · 8 km deep · 96 km away
- 2.611km N of San Simeon, CA · 2265 days ago · 5 km deep · 95 km away
- 1.63km E of Aromas, CA · 2265 days ago · 1 km deep · 70 km away
- 2.813km S of Tres Pinos, CA · 2265 days ago · 6 km deep · 36 km away · felt by 2
- 2.412km S of Tres Pinos, CA · 2266 days ago · 4 km deep · 36 km away
- 2.112km S of Tres Pinos, CA · 2266 days ago · 3 km deep · 36 km away
- 3.312km S of Tres Pinos, CA · 2266 days ago · 5 km deep · 36 km away · felt by 71
- 2.312km S of Tres Pinos, CA · 2266 days ago · 4 km deep · 36 km away
- 1.510km ESE of Pinnacles, CA · 2268 days ago · 7 km deep · 13 km away
- 1.829km ENE of Pinnacles, CA · 2268 days ago · 7 km deep · 13 km away
- 1.514km S of Tres Pinos, CA · 2269 days ago · 8 km deep · 34 km away
- 2.04km S of San Juan Bautista, CA · 2269 days ago · 5 km deep · 60 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc73434676. Read Sun, Oct 4, 2026, 4:42 PM UTC.