① Summary
4.9
M · Peak
Mainshock magnitude · 08-31 12:04
First detected
08-31 12:04
Scope
Epicentre ~979 km from Sandakan
Epicentre:13 km SSE of Union, Philippines · 震源深度 83.891 km (9.64, 126.14)
② Timeline
08-31 12:04
主震 · 震级 M4.9 · 震源深度 83.891 km · 震中 9.64, 126.14
③ Data curve
Magnitude series (M)
08-31 12:04
08-31 12:04
Range 4.9 – 4.9 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
55650 raw observations for this kind (per-observation archive, including heartbeat rows).
Open raw observations ›