Tungurahua volcano‘s activity remains at similar moderate levels as yesterday, lower than compared to a few days ago. Explosions every few
hours are accompanied by strong cannon-shot noises and eject glowing bombs to up to 500 m height. Steam and ash plumes rise up to 4 km above the crater. Light ash fall was reported to the W and NW in the sectors of Chacauco, Cotaló and El Tablón.
The volcanic tremor is at medium levels. 61 tremor pulses and 120 long-period events were registered over 24 hours.
Etna volcano: Explosive activity from Bocca Nuova continues, at least intermittently.
A small earthquake swarm has developed at the southern margin of the Long Valley caldera in California, just north of Convict Lakes. The largest was a 2.5 event at 10 km depth. The activity falls well within normal levels. Slight inflation has been measured during past months.
Popocatépetl remains at relatively low levels of activity. During 9 hours, only 7 weak explosions of mostly steam and gas were observed. A steam plume rises about 700 meters above the crater.
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