Seems even more active, at least according to number of magnitude 6+ earthquakes since 1900 in the region https://earthquake.usgs.gov/earthquakes/map/?extent=12

Seems even more active, at least according to number of magnitude 6+ earthquakes since 1900 in the region https://earthquake.usgs.gov/earthquakes/map/?extent=12.72608,101.84326&extent=49.56798,179.18701&range=search&search=%7B%22name%22:%22Search%20Results%22,%22params%22:%7B%22starttime%22:%221900-01-01%2000:00:00%22,%22endtime%22:%222025-11-24%2023:59:59%22,%22maxlatitude%22:45.951,%22minlatitude%22:20.303,%22maxlongitude%22:147.305,%22minlongitude%22:118.477,%22minmagnitude%22:6,%22orderby%22:%22time%22%7D%7D https://earthquake.usgs.gov/earthquakes/map/?extent=12.72608...