169 km WSW of Pistol River, Oregon

This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 670 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.1 would have released about 32 times as much.

1. Northridge, California 1994 M 6.7 250× the energy of this one
2. Mineral, Virginia 2011 M 5.8 11× the energy of this one
3. Magna, Utah 2020 M 5.7 7.9× the energy of this one
4. This earthquake M 5.1 about 670 tons of TNT
5. Around the size people start to feel M 3.0 this one released 1,400× 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 41.8723, -126.3717. Map © OpenStreetMap contributors.

Aftershocks so far

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

1. 2.0 126 km WSW of Pistol River, Oregon 18:02 UTC
2. 2.6 195 km WSW of Pistol River, Oregon 13:00 UTC
3. 2.6 199 km WSW of Pistol River, Oregon 04:14 UTC
4. 2.9 207 km WSW of Pistol River, Oregon 06:42 UTC
5. 2.6 186 km W of Pistol River, Oregon 17:59 UTC
6. 2.5 152 km WSW of Pistol River, Oregon 19:35 UTC
7. 5.7 143 km WSW of Pistol River, Oregon 10:53 UTC
8. 2.7 199 km W of Pistol River, Oregon 15:08 UTC
9. 2.1 140 km W of Crescent City, California 05:58 UTC
10. 3.1 204 km WSW of Pistol River, Oregon 08:15 UTC
11. 3.7 145 km WSW of Pistol River, Oregon 04:26 UTC
12. 2.9 189 km WSW of Pistol River, Oregon 05:28 UTC
13. 3.5 155 km W of Pistol River, Oregon 05:27 UTC
14. 3.2 210 km WSW of Pistol River, Oregon 05:26 UTC
15. 2.1 134 km WSW of Pistol River, Oregon 08:20 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 17:51 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 5.9 on 2021-06-04 — it released about 16 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.