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Observation record / USGS 地震速报
M 4.0 - 169 km S of False Pass, Alaska
First seen 10/23, 08:39 · Last observed 10/23, 10:09 · Source data is current
Read the original source ↗Title-based outlineM 4.0 - 169 km S of False Pass, Alaska
Why it mattersOriginal USGS magnitude and event time for checking records. Magnitude is not popularity, an impact assessment or an early warning.
30 minutesRank movement-3
Baseline observed 10/23, 09:39
1 hourRank movement-3
Baseline observed 10/23, 09:09
24 hoursRank movement—
Building history
Publication position history
10 observationsPublication feed in source order. Position changes do not count as heat or momentum.
USGS public domain; attribution
View original observation times and ranks
| Observation time (Beijing) | Source position |
|---|---|
| 10/23, 10:09 | 6 |
| 10/23, 09:59 | 5 |
| 10/23, 09:49 | 5 |
| 10/23, 09:39 | 3 |
| 10/23, 09:29 | 3 |
| 10/23, 09:19 | 3 |
| 10/23, 09:09 | 3 |
| 10/23, 08:59 | 3 |
| 10/23, 08:49 | 2 |
| 10/23, 08:39 | 2 |
Daily aggregate history
| 日期 | Best daily position | Last daily position | Observations |
|---|---|---|---|
| 2026-10-23 | 2 | 6 | 10 |