August 30 , 2015. English . Lokon-Empung , Piton de la Fournaise , Nevado Del Ruiz .

Home / blog georges Vitton / August 30 , 2015. English . Lokon-Empung , Piton de la Fournaise , Nevado Del Ruiz .

August 30 , 2015. English . Lokon-Empung , Piton de la Fournaise , Nevado Del Ruiz .

August 30 , 2015.

 

Lokon-Empung , Nord Sulawesi , Indonesia :

An eruption of Gunung Lokon   was held in Tomohon, North Sulawesi, on August 29, 2015 at 11:48:56 p.m. h. The eruption was accompanied by loud rumblings that were heard from Mount Lokon and Mahawu observation post  , located 5.5 km to the east of Mount Lokon. A column of ash eruption of 1500 meters, thick, graywhite color, was dispersed by a light wind to the north and northeast. The length of the eruption recorded on the seismograph had a duration of 575 seconds. Coordination with protection services is always carried out by the PVMBG regularly and it alerted to 20h00 (3-4 hours before the eruption). So far G. Lokon is still at the level of activity : ALERT (level III). People do not move within 2.5 km around the crater Tompaluan  .

 Lokon

On August 30, 2015 at 0:00

Weather:
Bright, calm wind, the mountain looks clear this morning.
Visual:
A thick grayish white smoke rises from the crater Tompaluan to a height of 200-300 m.
Seismicity:
Have been registered:
3 distant tectonic events max amplitude of 3 to 20 mm, 50 to 90 sec period.
1 local tectonic event, max 40 mm amplitude, duration of 3, 5 sec.
26 volcanic events shallow max amplitude of 3-12 mm, length 3-10 sec.
30 volcanic emission events of 5-47 mm max amplitude, duration 15-70 sec.
Tremor: amplitude of 0.5 to 45 mm.

Conclusions:
G. Lokon is Level 3 (ALERT). There is no activity within a radius of 2.5 kilometers around the crater Tompaluan of Mount Lokon  .

 

Source  : PVMBG CVGHM

Photo : AP ( 2011)

 

 

Piton de la Fournaise , La Réunion:

Activity Bulletin Saturday 29 August 2015  , 16:30 (Local Time)

The eruption that began on August 24, 2015 at 18:50 continues.
An aerial survey was conducted in the morning. The two cinder cones continue to build. Lava lakes are still present but less high in the cones (beware this may simply be related to the different point of view or to the construction of cone in the last 24 h) and fountains escape from them..

 

piton

 

After a short stint in a tunnel, the AA lava flow reappears and stretches about 1.5 km thickener a lava field that implemented early in the eruption. A large plume of gas rises from the vent up to about 3000 m altitude. The smell of SO2 is perceptible to the Maido.

From the point of view of the recordings made by the equipment from OVPF the level continues for about 36H.

 

Source : OVPF

Photo : Timaoul Photographies .

 

 

Nevado del Ruiz, Colombia :

Special Report: Increased activity of the volcano Nevado del Ruiz August 28, 2015

Subject: Extraordinary activity of the volcano Nevado del Ruiz. The Yellow level of activity or (III) continues: changes in the behavior of volcanic activity.

Regarding the monitoring of the activity of the Nevado del Ruiz volcano, the SERVICIO Geologico COLOMBIANO through the OBSERVATORIO VULCANOLÓGICO Y SISMOLÓGICO OF MANIZALES, informs that:

 

 

nevado

On August 28, 2015, at 8:10 (local time), the volcano has experienced a significant increase in seismic activity related to the movement of fluids inside the volcano. This activity is different of pulses of tremor that have arisen in recent weeks .It is registered as spasms with high levels of energy. These signs are accompanied by an increased number of LP type earthquakes (long time). Following this seismicity, there is the possibility of a further increase in the activity of the volcano.
These changes in activity are part of the instability of the volcano since 2010 and in recent months, it has been demonstrated mainly with continuous recording of tremor signal transmission processes associated with the ash emissions, as this was reported by the weekly bulletins.

Authorities recommend at the community to continue to be alert to any change in the current activity of the volcano. Do not exclude that other changes may occur in the behavior of volcanic activity, indicating greater system instability.

Source : SGC

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