California earthquakes

M2.7 earthquake 8km SW of Corona, CA

A magnitude 2.7 earthquake struck 8km SW of Corona, CA on Mon, Jul 18, 1949, 12:14 PM GMT-8 (20:14 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.1 11km W of Morongo Valley, CA. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.7 (ml), micro
Local time
UTC
1949-07-18 20:14:28 UTC
Depth
0.1 km (0.1 mi), shallow
Epicenter
33.813° N, 117.616° W
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 0.7 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.49
Depth from
From location
Station coverage gap
182°, poorly surrounded by stations
Stations used
6

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.511km ENE of Cabazon, CA · 28189 days ago · 6 km deep · 88 km away
  2. 3.111km W of Morongo Valley, CA · 28182 days ago · 6 km deep · 89 km away
  3. 2.53km NNW of San Jacinto, CA · 28179 days ago · 5 km deep · 59 km away
  4. 2.612km SSE of San Pedro, CA · 28178 days ago · 6 km deep · 61 km away
  5. 2.45km SE of Banning, CA · 28171 days ago · 6 km deep · 72 km away
  6. 3.45km S of Redlands, CA · 28160 days ago · 15 km deep · 45 km away
  7. 3.74km N of Banning, CA · 28158 days ago · 12 km deep · 71 km away
  8. 2.12km W of Inglewood, CA · 28150 days ago · 18 km deep · 71 km away
  9. 3.011km S of San Pedro, CA · 28150 days ago · 6 km deep · 67 km away
  10. 2.93km N of Colton, CA · 28146 days ago · 15 km deep · 42 km away
  11. 2.66km N of Cabazon, CA · 28141 days ago · 6 km deep · 79 km away
  12. 2.719km S of Malibu Beach, CA · 28141 days ago · 6 km deep · 97 km away

Before

  1. 2.518km SSW of San Pedro, CA · 28190 days ago · 6 km deep · 72 km away
  2. 3.04km SSW of Redlands, CA · 28192 days ago · 14 km deep · 45 km away
  3. 2.32km WNW of Irvine, CA · 28194 days ago · 6 km deep · 23 km away
  4. 2.88km E of Lucerne Valley, CA · 28198 days ago · 6 km deep · 98 km away
  5. 2.94km WSW of Manhattan Beach, CA · 28198 days ago · 6 km deep · 77 km away
  6. 3.13km NNW of Colton, CA · 28205 days ago · 17 km deep · 42 km away
  7. 2.33km E of Norwalk, CA · 28206 days ago · 6 km deep · 41 km away
  8. 2.32km SSE of South Whittier, CA · 28206 days ago · 19 km deep · 42 km away
  9. 2.12km SSW of Santa Monica, CA · 28206 days ago · 6 km deep · 84 km away
  10. 2.43km NW of Santa Monica, CA · 28207 days ago · 15 km deep · 86 km away
  11. 2.48km SSE of Chino Hills, CA · 28211 days ago · 6 km deep · 16 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3355841. Read Tue, Sep 22, 2026, 12:16 PM UTC.