California earthquakes

M1.7 earthquake 5 km N of McCloud, California

A magnitude 1.7 earthquake struck 5 km N of McCloud, California on Mon, Dec 7, 1987, 4:21 AM PST (12:21 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.5 16 km N of Weaverville, California. This one was a foreshock.

McCloud forecastMore in California

Map

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

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The earthquake

Magnitude
1.7 (md), micro
Local time
UTC
1987-12-07 12:21:16 UTC
Depth
4.5 km (2.8 mi), shallow
Epicenter
41.309° N, 122.144° 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 0.6 km horizontally, 3.1 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
93°
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: 20 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.69 km NNW of Big Bend, California · 14172 days ago · 4 km deep · 28 km away
  2. 2.04 km NNW of Palo Cedro, California · 14168 days ago · 4 km deep · 79 km away
  3. 1.66 km S of Hat Creek, California · 14161 days ago · 3 km deep · 80 km away
  4. 1.67 km S of Hat Creek, California · 14160 days ago · 1 km deep · 80 km away
  5. 1.814 km W of Montgomery Creek, California · 14158 days ago · 14 km deep · 50 km away
  6. 1.814 km W of Dunsmuir, California · 14157 days ago · 17 km deep · 27 km away
  7. 1.55 km E of Round Mountain, California · 14153 days ago · 11 km deep · 62 km away
  8. 2.35 km ENE of Douglas City, California · 14150 days ago · 10 km deep · 95 km away
  9. 1.55 km WSW of Bella Vista, California · 14149 days ago · 2 km deep · 77 km away
  10. 1.95 km ENE of Bella Vista, California · 14147 days ago · 4 km deep · 72 km away
  11. 2.516 km N of Weaverville, California · 14146 days ago · 21 km deep · 80 km away
  12. 1.73 km WNW of Central Valley (historical), California · 14144 days ago · -1 km deep · 72 km away
  13. 1.611 km NE of Montgomery Creek, California · 14142 days ago · 3 km deep · 52 km away
  14. 1.711 km NE of Montgomery Creek, California · 14142 days ago · 3 km deep · 52 km away
  15. 1.74 km NNW of Palo Cedro, California · 14134 days ago · 21 km deep · 80 km away
  16. 1.519 km E of Lakehead, California · 14127 days ago · 4 km deep · 44 km away
  17. 1.90 km N of Central Valley (historical), California · 14127 days ago · 23 km deep · 72 km away
  18. 1.77 km ENE of Carrick, California · 14124 days ago · 3 km deep · 23 km away
  19. 1.714 km WNW of Round Mountain, California · 14123 days ago · 13 km deep · 54 km away
  20. 1.76 km W of Big Bend, California · 14118 days ago · 4 km deep · 34 km away

Before

  1. 2.03 km SSW of Palo Cedro, California · 14179 days ago · 9 km deep · 86 km away
  2. 1.81 km N of Old Station, California · 14183 days ago · 6 km deep · 91 km away
  3. 1.99 km N of Montgomery Creek, California · 14188 days ago · 15 km deep · 47 km away
  4. 1.88 km N of Montgomery Creek, California · 14190 days ago · 15 km deep · 47 km away
  5. 1.64 km NW of Montgomery Creek, California · 14190 days ago · 13 km deep · 51 km away
  6. 1.69 km N of Montgomery Creek, California · 14191 days ago · 12 km deep · 46 km away
  7. 1.817 km SE of Fall River Mills, California · 14195 days ago · 14 km deep · 85 km away
  8. 1.716 km E of Big Bend, California · 14199 days ago · 14 km deep · 46 km away
  9. 3.813 km SE of Trinity Center, California · 14201 days ago · 4 km deep · 58 km away
  10. 2.215 km E of Lakehead, California · 14207 days ago · 3 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc109608. Read Wed, Sep 30, 2026, 8:01 PM UTC.