209 km WSW of Pistol River, Oregon

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 85 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.5 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 2,000× the energy of this one
2. Mineral, Virginia 2011 M 5.8 89× the energy of this one
3. Magna, Utah 2020 M 5.7 63× the energy of this one
4. This earthquake M 4.5 about 85 tons of TNT
5. Around the size people start to feel M 3.0 this one released 180× more

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.

Where

Epicentre 41.8636, -126.8678. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 2.6 195 km WSW of Pistol River, Oregon 13:00 UTC
2. 2.6 199 km WSW of Pistol River, Oregon 04:14 UTC
3. 2.9 207 km WSW of Pistol River, Oregon 06:42 UTC
4. 2.6 186 km W of Pistol River, Oregon 17:59 UTC
5. 2.9 231 km WSW of Pistol River, Oregon 22:57 UTC
6. 2.7 199 km W of Pistol River, Oregon 15:08 UTC
7. 3.4 233 km WSW of Pistol River, Oregon 05:31 UTC
8. 3.1 204 km WSW of Pistol River, Oregon 08:15 UTC
9. 2.9 189 km WSW of Pistol River, Oregon 05:28 UTC
10. 3.2 210 km WSW of Pistol River, Oregon 05:26 UTC
11. 2.5 185 km W of Gold Beach, Oregon 04:44 UTC
12. 2.5 230 km W of Gold Beach, Oregon 07:31 UTC
13. 2.9 198 km WSW of Pistol River, Oregon 10:52 UTC
14. 2.9 184 km WSW of Pistol River, Oregon 17:32 UTC
15. 4.3 194 km W of Pistol River, Oregon 03:09 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 19:10 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

For this area

The largest earthquake within 50 km in our catalogue was M 5.6 on 2018-07-24 — it released about 45 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

• The official USGS event page — the source of record for every value above
• Did you feel it? Report it to USGS — reports go to USGS, not to us
• ShakeMap for this event, when USGS has produced one

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