QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Crescent City, CA

USGS: 21 km W of Crescent City, California

8:39 pm PST, Nov 8, 2016 · · 28 km deep · released about 180 lb of TNT

Every earthquake near Crescent City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Del Norte County 39 kmCurry County 81 kmJosephine County 101 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
8:39 pm PST on 8 November 2016 ()
Where
21 km (13 mi) W of Crescent City, CA · earthquakes near Crescent City
Magnitude
M 2.5 (ml)
Depth
28 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Del Norte County, 39 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3614 days ago

A magnitude 2.5 earthquake was recorded 21 km (13 mi) W of Crescent City, CA, at 8:39 pm PST on 8 November 2016 (04:39 UTC). 1 person has reported feeling it to USGS. This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

Earthquakes near other towns within 30 km: Bertsch-Oceanview, Fort Dick.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.9 5 km NNE of Hiouchi, California · 35 km ENE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 41.7582, -124.4557. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Del Norte County, CA 39 km (24 mi) E earthquakes near Del Norte County
Curry County, OR 81 km (51 mi) NNE earthquakes near Curry County
Josephine County, OR 101 km (63 mi) NE earthquakes near Josephine County
Humboldt County, CA 125 km (78 mi) SSE earthquakes near Humboldt County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

51 earthquakes have been recorded within 50 km since this one.

  1. 1.9 11 km W of Smith River, California
  2. 1.6 3 km ENE of Harbor, Oregon
  3. 2.2 54 km WSW of Pistol River, Oregon
  4. 1.8 6 km NW of Brookings, Oregon
  5. 1.6 41 km WSW of Brookings, Oregon
  6. 2.0 13 km NW of Brookings, Oregon
  7. 1.9 16 km W of Crescent City, California
  8. 4.3 16 km WSW of Klamath, CA
  9. 2.5 11 km NW of Crescent City, CA
  10. 2.3 16 km WSW of Crescent City, California
  11. 2.8 12 km NW of Crescent City, CA
  12. 2.3 16km WNW of Klamath, CA
  13. 2.1 17 km WSW of Brookings, Oregon
  14. 2.5 24 km WSW of Brookings, Oregon
  15. 2.0 17 km WSW of Brookings, Oregon

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.