Mount Shishaldin's most recent eruptions were in 1995 96 and 1999 . Since the 1999 eruption, it has maintained seismic activity, typically having very low-magnitude volcanic earthquakes ( most are below magnitude 1 ) every 1 2 minutes.
42.
In November 2013, Lough et al . reported deep long period volcanic earthquakes centered at depths of 30-40 km approximately 55 km S of Mount Sidley that were interpreted as indications of present deep crustal magmatic activity beneath the Executive Committee Range.
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On Tuesday, 23 November 2010, 16.30 WIB ( " Western Indonesian Time " ), the Indonesian Centre of Vulcanology and Geology Hazard Mitigation ( CVGHM ) confirmed the activity status of Mount Bromo at " alert " due to increasing tremor activity and shallow volcanic earthquakes at the mountain.
