M4.2 Earthquake – 30 km S of Adak, Alaska
Nov 4, 2026 19:22 UTC (5 days ago)
- Magnitude
- 4.2 (mb)
- Time
- Nov 4, 2026 19:22 UTC
- Depth
- 74.5 km (46.3 mi)
- Epicenter
- 51.598°, -176.658°
- Location
- 30 km S of Adak, Alaska, United States
- Reported by
- USGS, EMSC · USGS event page
Each circle is an earthquake. Bigger and redder = stronger. The ring marks 100 km around the epicenter.
Magnitude<33–44–55–66+AgeLast hourLast 24 hOlder
Other earthquakes within 100 km (last 30 days)
| Mag | Location | When |
|---|---|---|
| 2.1 | 17 km W of Adak, Alaska | 4 days ago Nov 6, 2026 05:16 UTC |
| 1.6 | 16 km NE of Adak, Alaska | 6 days ago Nov 3, 2026 21:03 UTC |
| 2.9 | 64 km SE of Adak, Alaska | 6 days ago Nov 3, 2026 17:40 UTC |
| 3.6 | 67 km SE of Adak, Alaska | 6 days ago Nov 3, 2026 16:48 UTC |
| 1.0 | 38 km W of Adak, Alaska | 7 days ago Nov 3, 2026 07:20 UTC |
| 1.6 | 36 km W of Adak, Alaska | 7 days ago Nov 3, 2026 07:04 UTC |
| 1.2 | 38 km W of Adak, Alaska | 7 days ago Nov 3, 2026 02:43 UTC |
| 1.4 | 37 km W of Adak, Alaska | 7 days ago Nov 3, 2026 01:25 UTC |
| 1.5 | 77 km W of Adak, Alaska | 8 days ago Nov 2, 2026 09:18 UTC |
| 2.4 | 52 km SSW of Adak, Alaska | 8 days ago Nov 1, 2026 17:56 UTC |
Learn more
- The Earthquake Magnitude Scale ExplainedRichter versus moment magnitude, what each level feels like, and how often each size occurs.
- Earthquake Depth Explained: Why It MattersShallow, intermediate and deep earthquakes, why depth changes the shaking, and how reliable the number is.
- What to Do Before, During and After an EarthquakeDrop, Cover and Hold On, what to do in a car or near the coast, and how to handle aftershocks.
Magnitudes and locations come from automatic or reviewed solutions and are often revised in the hours after an earthquake. Email alerts are coming soon; join the waiting list.