News of Piton de la Fournaise
The local volcano observatory Observatoire Volcanologique du Piton de la Fournaise (OVPF) reported that the volcano-seismic crisis at the volcano ceased at about 19:00 local time yesterday.
The crisis, followed the increasing seismic activity, started on 7 September at 16:54 local time represented by a weak ground deformation in the summit area. The ground has been uplifted by less than 1 cm. Earthquakes were located mainly beneath the northern rim of Dolomieu crater (only about 2-3 quakes per hour on average since the seismicity ended).
A new eruption is not ruled out, magma injection may come unexpectedly as happened in October 2019 or December 2020.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 9 September 2022
Update
A new eruption started at the volcano at 07:48 local time yesterday.
The eruption followed a seismic crisis, starting at 06:23 local time, typical sign of magma pushing its way towards the surface. The volcanic-seismic tremor continued to evolve until about 07:48 local time accompanied by emissions of gas and water vapor, another tell-tale sign of an impending eruption. The OVFP's seismic network quickly detected the tremor location on the south-southwest flank of the Rivals crater at approx. 2200 m altitude. The tremor gradually decreased since 08:00 local time as a new batch of magma has loosed the pressure within country rocks by reaching the surface (being erupted as lava).
A new eruptive fissure opened on the west of Kala Pélé crater and started to erupt lava fountains, about 20-30 meters tall, from a chain of vents. Fissure vents continue to feed lava flowing down the slope.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 20 September 2022
The eruption followed a seismic crisis, starting at 06:23 local time, typical sign of magma pushing its way towards the surface. The volcanic-seismic tremor continued to evolve until about 07:48 local time accompanied by emissions of gas and water vapor, another tell-tale sign of an impending eruption. The OVFP's seismic network quickly detected the tremor location on the south-southwest flank of the Rivals crater at approx. 2200 m altitude. The tremor gradually decreased since 08:00 local time as a new batch of magma has loosed the pressure within country rocks by reaching the surface (being erupted as lava).
A new eruptive fissure opened on the west of Kala Pélé crater and started to erupt lava fountains, about 20-30 meters tall, from a chain of vents. Fissure vents continue to feed lava flowing down the slope.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 20 September 2022
Update 9/21:
The effusive eruption at the volcano continues with little changes since the last update.
A sharp decline of the volcanic tremor has been recorded throughout yesterday, but has stabilized at about 23:00 local time.
This had an effect on the fountaining activity as well which continues at lower levels.
The lava continues to keep flows active.
The seismic network registered 24 volcano-tectonic earthquakes during the past 24 hours.
In addition, sulfur dioxide (SO2) emissions reached to a 2054 tonnes in total so far. The TROPOMI satellite, passing through the current eruption site at 10:10 local time yesterday, detected gas emissions dispersing towards the southwest.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 21 September 2022
A sharp decline of the volcanic tremor has been recorded throughout yesterday, but has stabilized at about 23:00 local time.
This had an effect on the fountaining activity as well which continues at lower levels.
The lava continues to keep flows active.
The seismic network registered 24 volcano-tectonic earthquakes during the past 24 hours.
In addition, sulfur dioxide (SO2) emissions reached to a 2054 tonnes in total so far. The TROPOMI satellite, passing through the current eruption site at 10:10 local time yesterday, detected gas emissions dispersing towards the southwest.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 21 September 2022
Update 9/26:
The effusive activity at the current eruption site seems to continue at stable conditions over the past 24 hours.
Most of the fluid lava is going directly through lava tunnels fed by lava fountains from the main spatter cone. Lava flows branched off into two lava arms advancing eastward and southeastward. The lava flow front has been located in the area of the Château Fort crater at about 2000 meters altitude this morning. The estimated current lava flow discharge rate is measured 1-3.5 m3/s and lava volume of about 1,2-2.5 million m3 since the eruption began.
Strong SO2 emissions continue to emit (so-called degassing) from the vents dispersing in the west-southwest direction.
The volcanic tremor continues at stable levels, no earthquake has been detected over the past 24 hours hinting a fluent movement of magma towards the surface without fracturing rocks at depth.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 25 September 2022
Most of the fluid lava is going directly through lava tunnels fed by lava fountains from the main spatter cone. Lava flows branched off into two lava arms advancing eastward and southeastward. The lava flow front has been located in the area of the Château Fort crater at about 2000 meters altitude this morning. The estimated current lava flow discharge rate is measured 1-3.5 m3/s and lava volume of about 1,2-2.5 million m3 since the eruption began.
Strong SO2 emissions continue to emit (so-called degassing) from the vents dispersing in the west-southwest direction.
The volcanic tremor continues at stable levels, no earthquake has been detected over the past 24 hours hinting a fluent movement of magma towards the surface without fracturing rocks at depth.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 25 September 2022
Update:
New stunning images from the ongoing eruption site at the volcano have been published. Watch and enjoy them attached below.
UPDATE 10/3:
The activity increased from low levels to pulsating lava fountains yesterday.
At night, glowing basaltic pyroclastic juvenile fragments traced parabolic ballistic paths as they fall back to the main cone's walls and illuminated the whole edifice.
The lava flow continues to effuse from the cone opening at its south base and makes it directly into lava tunnels.
Satellite-based measurements of SO2 concentrations in the atmosphere show elevated SO2 plumes ejected by Piton de la Fournaise. Sulfur dioxide (SO2) emissions reached to a 1500 tonnes on 1 October and extended about 400 km from the volcano. The estimated height of the gas and water-vapor plume is reported at approx. less than 7 km.
The seismic network registered three volcano-tectonic earthquakes over the past 24 hours.
Weak inflation continues to be detected.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 2 October 2022
Update 10/6:
According to the local observatory Observatoire Volcanologique du Piton de la Fournaise, the effusive eruption is reported to be ceased today.
The latest available webcam images seem to confirm that the lava flow stopped to be active at about 10:10 local time this morning and is no longer visible in the main spatter cone.
This was confirmed by the seismic station as detected a steep decline of the volcanic-seismic tremor.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 5 October 2022
The latest available webcam images seem to confirm that the lava flow stopped to be active at about 10:10 local time this morning and is no longer visible in the main spatter cone.
This was confirmed by the seismic station as detected a steep decline of the volcanic-seismic tremor.
Source: Observatoire Volcanologique du Piton de la Fournaise volcano activity update 5 October 2022
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