According to a press article citing the Center for Volcanology and Geological Disaster Mitigation (PVMBG), the internal activity detected at the volcano has somewhat decreased during the past 2 days, but seismicity remains high. Hundreds of small earthquakes are being detected each day, with most of them related to rock fracturing as magma is intruding at shallow depth, pressurizing the rocks.
PVMBG estimates that 150 million cubic meters of magma have accumulated in the recent recharging episode,- more than enough to cause a potentially very large explosive eruption (although it needs to be stressed out that estimates of this sort are typically very imprecise and that magma intrusions do not necessarily mean that there will be an eruption actually). [less]

FVAG01 at 15:01 UTC, 02/10/17 from SABM [less]

FVAU0295 at 08:28 UTC, 02/10/17 from ADRM [less]

FVAU0405 at 04:14 UTC, 02/10/17 from ADRM [less]

FVAG01 at 02:55 UTC, 02/10/17 from SABM [less]

FVXX20 at 01:21 UTC, 02/10/17 from KNES [less]

...30 Sep:
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20170930/2126Z FL070 EXTD NW OBS VA DTG:30/2120Z [less]

FVAU0405 at 16:08 UTC, 01/10/17 from ADRM [less]

FVXX21 at 15:42 UTC, 01/10/17 from KNES [less]

FVFE01 at 11:45 UTC, 01/10/17 from RJTD [less]

Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: ...more [read all]

Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ...more [read all]

Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ...more [read all]

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ...more [read all]

Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ...more [read all]