QuakeIndex

Earthquake · automatic estimate, may change

M 2.4ml

Earthquake near Sand Point, AK

USGS: 48 km WSW of Ivanof Bay, Alaska

11:09 am AKDT, Sep 30, 2026 · · 88 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N
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
11:09 am AKDT on 30 September 2026 ()
Where
50 km (31 mi) NNE of Sand Point, AK · earthquakes near Sand Point
Magnitude
M 2.4 (ml)
Depth
88 km below the surface
Felt
no reports yet
Nearest
Aleutians East Borough, 126 km WSW
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 2 days ago

A magnitude 2.4 earthquake was recorded 50 km (31 mi) NNE of Sand Point, AK, at 11:09 am AKDT on 30 September 2026 (19:09 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 4.0 on 2020-01-09 — about 250 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 55.7540, -160.2150. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aleutians East Borough, AK 126 km (78 mi) WSW earthquakes near Aleutians East Borough

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

Aftershocks so far

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

  1. 1.7 21 km WSW of Ivanof Bay, Alaska
  2. 2.2 17 km W of Ivanof Bay, Alaska

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.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

What changedFromToWhen
longitude-160.22-160.21
latitude55.7655.75
depth88.688.3
magnitude2.22.4

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.