Mud remnants from phreatic eruptions marking the summit lake of Rincon de la Vieja were found by volcanologists to Copelares, 2 km from the crater on November 15. This sludge were found on the leaves of ferns and shrubs.
The inspection showed a decrease of 2 meters from the lake level in four months. Degassing marked the Laguna Caliente and a gas plume reaches 300 meters high. Nineteen phreatic eruptive episodes were recorded in the space of half past one hour, reaching 10-20 meters in height.
Significant accumulation of materials in the northern sector could generate lahars
Source: La Nacion - link
At the Piton de la Fournaise, the Prefecture announced on November 17th from 12 pm, the return of Orsec plan in volcanic vigilance phase.
Public access to the Enclos is strictly limited to the following marked trails:
- The path Pas de Bellecombe - Formica Leo - Chapel de Rosemont - Trail Rivals - Crater Caubet
- The trail Pas de Bellecombe - Formica Leo - Chapel de Rosemont - trail of Access to the observation site of Dolomieu crater (access from the north of the crater); signage forbidden to approach the edge of the crater Dolomieu at the observation platform, because this part is at risk of collapse.
- The trail Pas de Bellecombe - Sentier Kapor - Piton Kapor.
Absolute prohibition to engage beyond the provisional boundaries that are materialized on Kapor and Rivals trails.
No more markup beyond authorized limits, with the presence of uncooled and unstabilized flows at risk of harmful degassing.
The Colima, in Mexico, has four explosions in less than 3 h.this November 17, respectively, 7:46, 8:22, 9:00 and 10:12 a.m. after the webcam Mexico / Retuit.
In Kamchatka, the Karymsky, in orange alert, continues its explosive activity, with an ash plume above 6,000 meters asl, then extending to 15 km east of the volcano.
On the island of Sumatra, the Sinabung, untiring, continue to issue pyroclastic flows.