QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Bertsch-Oceanview, CA

USGS: 12km E of Bertsch-Oceanview, CA

10:13 pm PDT, Jul 30, 2019 · · 34 km deep · released about 170 lb of TNT

Every earthquake near Bertsch-Oceanview Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Del Norte County 3 kmJosephine County 81 kmCurry County 82 kmHumboldt County 116 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
10:13 pm PDT on 30 July 2019 ()
Where
11 km (7 mi) E of Bertsch-Oceanview, CA · earthquakes near Bertsch-Oceanview
Magnitude
M 2.5 (ml)
Depth
34 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Del Norte County, 3 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 569 days ago

A magnitude 2.5 earthquake was recorded 11 km (7 mi) E of Bertsch-Oceanview, CA, at 10:13 pm PDT on 30 July 2019 (05:13 UTC). 7 people have 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: Crescent City, Fort Dick.

How big was it?

This earthquake released about 170 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 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 · 11 km NNW 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 41.7437, -124.0207. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Del Norte County, CA 3 km (2 mi) ENE earthquakes near Del Norte County
Josephine County, OR 81 km (50 mi) NNE earthquakes near Josephine County
Curry County, OR 82 km (51 mi) N earthquakes near Curry County
Humboldt County, CA 116 km (72 mi) S earthquakes near Humboldt County
Jackson County, OR 134 km (83 mi) NE earthquakes near Jackson County

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

Aftershocks so far

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

  1. 2.4 20 km SE of Klamath, CA
  2. 1.9 7 km NE of Harbor, Oregon
  3. 2.4 14 km SSW of Crescent City, CA
  4. 1.8 12 km SSW of Brookings, Oregon
  5. 2.5 14 km SSW of Bertsch-Oceanview, CA
  6. 1.9 12 km WSW of Smith River, California
  7. 2.8 18 km SSE of Klamath, CA
  8. 2.7 13 km SSW of Bertsch-Oceanview, CA
  9. 1.6 18 km W of Happy Camp, California
  10. 2.6 18 km SSW of Brookings, OR
  11. 2.2 6 km W of Klamath, CA
  12. 2.5 17 km SSE of Klamath, CA
  13. 3.0 17 km SSE of Klamath, CA
  14. 1.8 5 km SW of Brookings, Oregon
  15. 1.9 11 km W of Smith River, California

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.