QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2mh

185 km W of Gold Beach, Oregon

Yes. A magnitude 2.2 earthquake was recorded 185 km W of Gold Beach, Oregon at 12:53 UTC on 2024-08-24, 12 km deep. 1 person has reported feeling it to USGS.

· 12 km deep · released about 60 lb of TNT

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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
Magnitude
M 2.2 (mh)
Depth
12 km below the surface
Felt
1 report · strongest reported intensity I
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 611 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 14 km (9 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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

The largest earthquake within 50 km since 2016 was M 5.9 on 2021-06-04 — about 350,000 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

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 42.1340, -126.6388. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 2.5 152 km WSW of Pistol River, Oregon
  2. 2.7 199 km W of Pistol River, Oregon
  3. 3.1 204 km WSW of Pistol River, Oregon
  4. 3.7 145 km WSW of Pistol River, Oregon
  5. 3.5 156 km W of Port Orford, Oregon
  6. 2.9 189 km WSW of Pistol River, Oregon
  7. 3.5 155 km W of Pistol River, Oregon
  8. 3.2 210 km WSW of Pistol River, Oregon
  9. 2.7 175 km WSW of Port Orford, Oregon
  10. 2.6 160 km W of Port Orford, Oregon
  11. 3.0 146 km WSW of Port Orford, Oregon
  12. 2.8 177 km WSW of Port Orford, Oregon
  13. 3.0 186 km WSW of Port Orford, Oregon
  14. 2.6 159 km WSW of Port Orford, Oregon
  15. 2.9 178 km W of Port Orford, 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.