Earthquakes & tsunami
Assessed by an AI model against this signal's rubric. Describes conditions; not a forecast or advice.
NormalStableMax M6.4, 4× M6+ (7d)
Largest quake this week M6.4; no high-impact alerts
Why it's at this level
USGS recorded 135 earthquakes of M4.5+ in the 7 days to 1 Nov, four of them M6+; the largest was an M6.4 south-east of Easter Island (29 Oct), and an M6.0 struck off Shima, Japan on 31 Oct. All PAGER alerts were green, with no M7+ and no tsunami flags.
What this means for you
No current high-impact earthquake. Earthquakes cannot be forecast; follow local guidance in seismic zones.
Why it matters
Large earthquakes can kill thousands in seconds and disrupt global supply chains (chips, cars).
What moves it
Tectonics — unpredictable; impact depends on depth, location and building standards.
Status at each of the last 8 checks
How it's rated
Alert
PAGER red, or a tsunami causing damage.
Watch
M7+ in the past 7 days, or PAGER orange, or a tsunami warning issued.
Normal
No USGS PAGER orange/red alert and no M7+ in the past 7 days.