QuakeIndex

explosion · reviewed by a seismologist

M 1.6ml

Earthquake near Myrtle Point, OR

No earthquake was likely felt in Myrtle Point in the 24 hours to 11:11 pm PST (07:11 UTC). The last one was M 4.9, 166 km (103 mi) WSW, at 2:55 am PDT on 6 August 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Myrtle Point

No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.6 explosion was recorded 20 km (13 mi) south of Myrtle Point, OR, at 11:51 am PDT on 2 September 2025 (18:51 UTC), less than 1 km deep.

USGS: 4 km W of Powers, Oregon

11:51 am PDT, Sep 2, 2025 · · -0.5 km deep · released about 6.8 lb of TNT

10 km30 km60 km120 km N Coos County 34 kmCurry County 47 kmJosephine County 72 kmDouglas County 91 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
11:51 am PDT on 2 September 2025 ()
Where
20 km (13 mi) south of Myrtle Point, OR · earthquakes near Myrtle Point
Magnitude
M 1.6 (ml)
Depth
-0.5 km below the surface
Felt
no reports yet
Nearest
Coos County, 34 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 435 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 11 km (7 mi) from the epicentre. In Myrtle Point, 20 km away, the estimate is intensity II (weak). 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.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 4.5 on 2019-11-30 — about 28,000 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 42.8833, -124.1320. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Coos County, OR 34 km (21 mi) N earthquakes near Coos County
Curry County, OR 47 km (29 mi) S earthquakes near Curry County
Josephine County, OR 72 km (45 mi) SE earthquakes near Josephine County
Douglas County, OR 91 km (57 mi) ENE earthquakes near Douglas County
Jackson County, OR 130 km (81 mi) ESE earthquakes near Jackson County
Lane County, OR 153 km (95 mi) NE earthquakes near Lane County

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

Aftershocks so far

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

  1. 1.6 12 km ESE of Myrtle Point, Oregon
  2. 1.6 10 km NNW of Bandon, Oregon
  3. 1.6 11 km NNE of Nesika Beach, Oregon
  4. 1.8 10 km NNE of Nesika Beach, Oregon
  5. 1.7 12 km SSE of Port Orford, Oregon
  6. 2.6 10 km NW of Langlois, Oregon
  7. 1.5 15 km ESE of Myrtle Point, Oregon
  8. 2.1 11 km S of Port Orford, Oregon
  9. 1.9 12 km NW of Nesika Beach, Oregon
  10. 1.5 5 km ESE of Coquille, Oregon
  11. 2.4 12 km SSE of Port Orford, Oregon
  12. 2.6 11 km SSE of Port Orford, Oregon
  13. 3.1 12 km SSE of Port Orford, Oregon
  14. 1.7 11 km SSE of Port Orford, Oregon
  15. 1.5 18 km ENE of Powers, 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.