QuakeIndex

explosion · reviewed by a seismologist

M 1.5ml

Earthquake near Myrtle Point, OR

No earthquake was likely felt in Myrtle Point in the 24 hours to 1:04 am PST (09:04 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 1.5 explosion was recorded 16 km (10 mi) east-southeast of Myrtle Point, OR, at 10:38 am PDT on 17 April 2026 (17:38 UTC), less than 1 km deep.

USGS: 15 km ESE of Myrtle Point, Oregon

10:38 am PDT, Apr 17, 2026 · · -0.5 km deep · released about 5.6 lb of TNT

10 km30 km60 km120 km N Coos County 23 kmCurry County 63 kmDouglas County 73 kmJosephine County 76 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
10:38 am PDT on 17 April 2026 ()
Where
16 km (10 mi) east-southeast of Myrtle Point, OR · earthquakes near Myrtle Point
Magnitude
M 1.5 (ml)
Depth
-0.5 km below the surface
Felt
no reports yet
Nearest
Coos County, 23 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 209 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 10 km (6 mi) from the epicentre. In Myrtle Point, 16 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.

Earthquakes near other towns within 30 km: Coquille.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 5.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 34,000 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 43.0045, -123.9650. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Coos County, OR 23 km (14 mi) NNW earthquakes near Coos County
Curry County, OR 63 km (39 mi) SSW earthquakes near Curry County
Douglas County, OR 73 km (45 mi) ENE earthquakes near Douglas County
Josephine County, OR 76 km (47 mi) SSE earthquakes near Josephine County
Jackson County, OR 124 km (77 mi) ESE earthquakes near Jackson County
Lane County, OR 134 km (83 mi) NE earthquakes near Lane County

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

Aftershocks so far

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

  1. 1.6 12 km ESE of Myrtle Point, Oregon
  2. 1.5 3 km SSW of Melrose, Oregon
  3. 1.6 10 km NNW of Bandon, Oregon
  4. 1.7 8 km SW of Lookingglass, Oregon
  5. 1.6 6 km W of Riddle, Oregon
  6. 1.5 9 km WSW of Lookingglass, 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.