① Summary
6.5
M · Peak
Mainshock magnitude · 09-17 22:19
First detected
09-17 22:19
Scope
Epicentre ~8127 km from Malaysia — beyond the 1500 km relevance radius, so it is hidden from the default list. Switch to Global to see it. · 2 aftershocks folded in (largest M6.4)
Epicentre:169 km W of Nikolski, Alaska · 震源深度 98 km (52.86, -171.38)
② Timeline
09-20 21:55
震级 M4.6 · 震源深度 87.277 km · 震中 52.75, -170.35
usgs
09-17 22:19
震级 M6.4 · 震源深度 114.8 km · 震中 52.54, -171.19
usgs
09-17 22:19
震级 M6.5 · 震源深度 98 km · 震中 52.86, -171.38
usgs
09-17 22:19
主震 · 震级 M6.5 · 震源深度 98 km · 震中 52.86, -171.38
③ Data curve
Magnitude series (M)
09-17 22:19
09-20 21:55
Range 4.6 – 6.5 M
⑤ News & official notices
No reports attributed to this event yet.
⑥ Sources & calibre
Calibre: observed — values come from monitoring stations and satellites, no model forecast. Entries backfilled from the forecast archive are labelled as such and never mixed in.
⚠ Gap notes and source annotations below are currently written in Chinese only — they are shown untranslated rather than omitted, so no information is lost.
Data gaps (stated, not hidden)
· 逐次观测留档自 2026-08-27 起 · 原因:disaster_collector 当日才上线;本条目的发震时刻取自源方报文,可早于此日,但那之前没有逐次过程记录
⑦ Raw observations
55967 raw observations for this kind (per-observation archive, including heartbeat rows).
Open raw observations ›