QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Bridgeport, WA

USGS: 9 km SW of Bridgeport, Washington

12:13 pm PDT, May 30, 2016 · · 11 km deep · released about 7.3 lb of TNT

Every earthquake near Bridgeport Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Douglas County 24 kmChelan County 64 kmOkanogan County 66 kmGrant County 85 kmFerry County 108 kmLincoln County 109 kmKittitas County 115 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
12:13 pm PDT on 30 May 2016 ()
Where
10 km (6 mi) SW of Bridgeport, WA · earthquakes near Bridgeport
Magnitude
M 1.6 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Douglas County, 24 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 559 days ago

A magnitude 1.6 earthquake was recorded 10 km (6 mi) SW of Bridgeport, WA, at 12:13 pm PDT on 30 May 2016 (19:13 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Brewster, Chelan.

How big was it?

This earthquake released about 7.3 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 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 47.9508, -119.7658. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Douglas County, WA 24 km (15 mi) SSE earthquakes near Douglas County
Chelan County, WA 64 km (40 mi) W earthquakes near Chelan County
Okanogan County, WA 66 km (41 mi) N earthquakes near Okanogan County
Grant County, WA 85 km (53 mi) SSE earthquakes near Grant County
Ferry County, WA 108 km (67 mi) ENE earthquakes near Ferry County
Lincoln County, WA 109 km (68 mi) ESE earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 1.6 20 km SSE of Mansfield, Washington
  2. 1.6 4 km NNW of Entiat, Washington
  3. 1.6 8 km WNW of Entiat, Washington
  4. 1.7 4 km WNW of Waterville, Washington
  5. 1.5 Washington
  6. 1.9 9 km NW of Entiat, Washington
  7. 1.6 6 km WNW of Entiat, Washington
  8. 1.7 14 km S of Disautel, Washington
  9. 1.5 7 km N of Waterville, Washington
  10. 1.8 10 km NNE of Entiat, Washington
  11. 1.5 5 km S of Entiat, Washington
  12. 1.5 6 km W of Entiat, Washington
  13. 1.6 5 km SW of Chelan Falls, Washington
  14. 1.7 6 km NNE of Waterville, Washington
  15. 2.2 2 km N of Waterville, 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.