Reykjanes (Reykjanes peninsula (SW Iceland)): As we informed in our latest update, the frequency of earthquakes have reduced, all below M 2.0. Scientists from the Icelandic Met Office (IMO) indicate that ongoing severe weather conditions over the peninsula might affect seismic instrument’s sensitivity, monitoring the smallest quake and making it more difficult to evaluate whether the seismic activity is really decreasing.
The effectiveness of investigations depends on the high sensitivity of earthquakes in real-time measurements.
… [read more]
…21 Nov:
The seismic activity has diminished a bit in intensity over the past 12 hours.
However, along the mean range of magnitude strength between M 1-2, an earthquake M 2.7 occurred at 03:28 PM local time. The quake was located at a very shallow level at 0.1 km depth with light shaking near the detected epicentre at Grindavikurbær.
Snaefellsjökull (Iceland): (21 Nov) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) London warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 and is moving at 30 kts in SE direction.
The full report is as follows: 17KM PLUME OBS VA DTG:21/0600Z to 20000 ft (6100 m)
Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20231121/1514Z FL080 EXTD N OBS VA DTG:21/1510Z
Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20231121/1117Z FL060 EXTD W OBS VA DTG:21/1110Z
Mayon (Luzon Island, Philippines): (20 Nov) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20231120/2047Z VA CLD UNKNOWN REPORTED OBS VA DTG:20/2050Z
Ulawun (New Britain, Papua New Guinea): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 40000 ft (12200 m) altitude or flight level 400 and is moving at 20 kts in NW direction.
The full report is as follows: VA TO FL400 EXD W OBS 21/1240Z EST VA DTG:21/1240Z to 40000 ft (12200 m)
Ibu (Halmahera, Indonesia): (21 Nov) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: GROUND REPORT OF ERUPTION WITH VA TO FL080 OBS VA DTG:21/0200Z
Dukono (Halmahera): (21 Nov) The vigorous explosive activity from the volcano continues.
Ash-abundant vulcanian-sized eruptions continue to produce tephra releasing to estimated elevation of 12,000 ft (3,700 m).
… [read more]
Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: OCNL EM to 19000 ft (5800 m)
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: NEW EM to 14000 ft (4300 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 .
The full report is as follows: FREQUENT VA EMS to 17000 ft (5200 m)
Nevado del Ruiz (Colombia): (21 Nov) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA OBS AT 0517Z
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: VA EMS PSBL to 19000 ft (5800 m)
Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: POSS VA EMS to 14000 ft (4300 m)
…21 Nov:
The effusive-explosive eruption of the volcano continues and has remained essentially unchanged.
Near-constant vulcanian explosions continue to take place from the summit crater that reached 4,6 km (15,000 ft) height and drifted west and northwest over the past few days.
… [read more]
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 and is moving at 10 kts in SW direction.
The full report is as follows: INTERMITTENT PUFF EMISSION to 22000 ft (6700 m)
