Last updated: 2026-03-16T10:00:27.017149Z (all times in UTC)

Currently Active Swarms (Last 24 Hours)

Swarm ID / Overview Image	Map	# Events	Mmax	Location	First Event	Last Event	Last Alarmed Event

Swarms in Last 1 to 7 Days

Swarm ID / Overview Image	Map	# Events	Mmax	Location	First Event	Last Event	Last Alarmed Event
MountRainier2026-1	Map	11	0.76	(46.851, -121.763) 1.4 km b.s.l.	2026-03-09T20:32:40.680000Z	2026-03-11T00:16:39.660000Z	No alarm

Swarms in Last 7 to 30 Days

Swarm ID / Overview Image	Map	# Events	Mmax	Location	First Event	Last Event	Last Alarmed Event
MountSt.Helens2026-1	Map	10	2.00	(46.202, -122.190) 2.2 km b.s.l.	2026-03-01T17:00:36.010000Z	2026-03-03T18:28:42.480000Z	No alarm

Full History