Last updated: 2025-07-19T04:21:20.088912Z (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
MountRainier2025-3	Map	990	2.42	(46.850, -121.764) 0.0 km b.s.l.	2025-07-08T02:58:03.650000Z	2025-07-19T02:30:35.250000Z	2025-07-19T02:30:35.250000Z

Swarms in Last 1 to 7 Days

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

Swarms in Last 7 to 30 Days

Swarm ID / Overview Image	Map	# Events	Mmax	Location	First Event	Last Event	Last Alarmed Event
MountRainier2025-2	Map	13	1.40	(46.851, -121.759) 0.4 km b.s.l.	2025-07-01T22:54:09.030000Z	2025-07-03T22:02:54.220000Z	2025-07-02T22:51:27.170000Z
MountSt.Helens2025-2	Map	29	0.75	(46.200, -122.191) 3.6 km b.s.l.	2025-06-22T12:22:21.000000Z	2025-06-28T16:41:52.670000Z	No alarm

Full History