Earthquake · reviewed by a seismologist
M -0.9ml
76 km NW of Ninilchik, Alaska
- When
- Magnitude
- M -0.9 (ml)
- Depth
- 3.5 km below the surface
- Felt
- no reports yet
- Nearest
- Kenai Peninsula Borough, 27 km ESE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3 hours ago
A magnitude -0.9 earthquake was recorded 76 km NW of Ninilchik, Alaska at 04:10 UTC on 2026-10-02. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 0.001 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 0.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 13,000,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 9,400,000,000× the energy of this one
- Around the size people start to feel M 3.0 840,000× the energy of this one
- This earthquake M -0.9 about 0.001 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 5.9 on 2021-12-21 — about 19,000,000,000 times the energy of this one.
Before 2016, the USGS record lists 14 earthquakes of M5 or more within 50 km; the five largest:
- 6.4 75 km WNW of Ninilchik, Alaska · 25 km SSW of this epicentre
- 6.2 70 km E of Port Alsworth, Alaska · 41 km SSW of this epicentre
- 6.1 73 km WNW of Ninilchik, Alaska · 12 km SSW of this epicentre
- 5.6 63 km WNW of Ninilchik, Alaska · 26 km S of this epicentre
- 5.5 56 km E of Port Alsworth, Alaska · 42 km SW of this epicentre
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 60.4828, -152.7460. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kenai Peninsula Borough, AK | 27 km (17 mi) | ESE | earthquakes near Kenai Peninsula Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
4 earthquakes have been recorded within 50 km since this one.
- 1.3 74 km W of Salamatof, Alaska
- -1.0 65 km ENE of Pedro Bay, Alaska
- 0.5 81 km NW of Ninilchik, Alaska
- 1.7 62 km WNW of Ninilchik, 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.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.