QuakeIndex

explosion · reviewed by a seismologist

M 1.6ml

Earthquake near White Salmon, WA

USGS: 8 km N of White Salmon, Washington

96 km (59 mi) ENE of Portland, OR

1:05 pm PDT, May 16, 2019 · · -1.0 km deep · released about 8.1 lb of TNT

10 km30 km60 km120 km N Hood River County 36 kmSkamania County 44 kmKlickitat County 55 kmWasco County 76 kmSherman County 77 kmClark County 78 kmMultnomah County 78 kmClackamas County 91 kmYakima County 92 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
1:05 pm PDT on 16 May 2019 ()
Where
9 km (6 mi) N of White Salmon, WA · earthquakes near White Salmon
Magnitude
M 1.6 (ml)
Depth
-1.0 km below the surface
Felt
no reports yet
Nearest
Hood River County, 36 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2695 days ago

A magnitude 1.6 earthquake was recorded 9 km (6 mi) N of White Salmon, WA, at 1:05 pm PDT on 16 May 2019 (20:05 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Hood River, Odell, Chenoweth, Carson.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 8.1 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 45.8085, -121.4835. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hood River County, OR 36 km (22 mi) SSW earthquakes near Hood River County
Skamania County, WA 44 km (27 mi) WNW earthquakes near Skamania County
Klickitat County, WA 55 km (34 mi) E earthquakes near Klickitat County
Wasco County, OR 76 km (47 mi) SSE earthquakes near Wasco County
Sherman County, OR 77 km (48 mi) SE earthquakes near Sherman County
Clark County, WA 78 km (48 mi) W earthquakes near Clark County

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

Aftershocks so far

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

  1. 1.7 6 km SE of Mosier, Oregon
  2. 1.9 1 km NNE of Dallesport, Washington
  3. 1.7 23 km N of Trout Lake, Washington
  4. 1.6 5 km S of Odell, Oregon
  5. 2.1 21 km NNW of Carson, Washington
  6. 1.6 5 km N of Mosier, Oregon
  7. 1.6 21 km N of Trout Lake, Washington
  8. 1.7 6 km SSE of Trout Lake, Washington
  9. 1.9 21 km N of Trout Lake, Washington
  10. 1.5 5 km NNW of White Salmon, Washington
  11. 2.1 21 km N of Trout Lake, Washington
  12. 1.9 21 km N of Trout Lake, Washington
  13. 1.7 1 km ESE of Chenoweth, Oregon
  14. 1.8 11 km NNW of Carson, Washington
  15. 1.6 4 km ENE of Dallesport, Washington

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.