Update on the eruptions of La Fournaise and Kilauea.

Piton de La Fournaise - central vent with a lava lake agitated by spattering - photo IPR

The eruption started on April 27, 2018 at 11:50 pm local time at Piton de La Fournaise continues. The intensity of the volcanic tremor (indicator of the eruptive intensity at the surface) is very slightly down for 48 hours.

The surface flows estimated from the satellite data, via the HOTVOLC platform (OPGC - Clermont Ferrand), recorded today were between 1 m³ / s and 2 m³ / s.

A very slight deflation of the volcano continues to be recorded on the deformation sensors of the OVPF. This means that the volume of magma coming out of the reservoir to feed the eruption is greater than the volume of magma that replenishes it.

No volcano-tectonic earthquake has been recorded in the past 24 hours under the Piton de la Fournaise building.

A team from the Observatory, on the ground, reported at 14:30 (local time) an activity focused on the central vent (as in previous days), lava flows only in lava tubes and sporadic projections. In addition, some small fires have been identified at the foot of the rampart west of Piton Bert.

It is interesting to compare each time the images in natural light and those made by Nicolas Villeneuve with the FLIR camera.

Sources: OVPF & Imazpress

Piton de La Fournaise - active central vent 04.05.2018 - photos Imazpress - thermal image FLIR by N.Villeneuve OVPF - one click to enlarge

Piton de la Fournaise - active central vent 04.05.2018 - thermal measurement at the FLIR camera - IPR photo

Piton de la Fournaise - lava flow front 04.05.2018 - pictures Imazpress - thermal picture FLIR by N.Villeneuve OVPF - one click to enlarge

The point after a week of eruption, by Nivolas Villeneuve: the eruption can last ! / OVPF

Report closer to the volcano with Aline Peltier, Patrice Boissier, Laurent Figon, Christine Ducos. Drone Images: OVPF-IPGP

At Kilauea, the eruption in the lower East Rift zone in Leilani Estate continues and concerns one or two crack segments since the end of last evening. A lava flow advanced from crack #8 from 5am. HST and progressed 900 meters to the NNE.

The last card of placement of the cracks mentions ten, the 06.05.2018 / 6h.

During the last 12 hours, soil deformation suggests a pause in magmatic accumulation in the distal part of the intrusion. Summit deflation continues, as does the level of the Overlook Lava Lake. The crater of Pu'u O'o does not contain active lava.

The two craters are the site of rockfalls during seismic aftershocks.

Sources: HVO-USGS, Extreme Exposure / Paradise helicopters, Big Island Now

Kilauea East Rift area - location of the 10 fissures on 06.05.2018 / 6h - map USGS in HVO

Kilauea East Rift area - 06.05.2018 / 9:32 HST - lava flow in Makamae Street / Leilani Estates - HVO photo - USGS

Kilauea East Rift Zone - Report eruptive cracks and areas covered by lava in Leilani Estates on 05.05.2018, on a Digital Globe satellite image of 17.03.2018 - Doc. USGS / Nasa Worldview / Digital Globe

Kilauea East Rift area - 05.05.2018 / 6am - opening of the seventh fissure near the intersection between the Leilani and Makamae roads; sending a plume of more than 1,200 meters - photo Bruce Omori / Fine Exposure Fine Art / Paradise Helico

Kilauea East Rift area - 05.05.2018 / 6h - A lava flow (# 7) crosses a street in Leilani Estates and threatens houses - photo above: photo Bruce Omori / Extreme Fine Art Exposure / Paradise Helico - photo below : the same crack, taken later from another angle and a different activity lower - Instagram photo user kilaueakyle.

Kilauea East Rift Zone - view of the crack # 7 at 180 ° to the previous photo (identify the houses) showing in the inset the linearity of the crack - photo USGS

Hawaii - 2018.05.06 - thermal anomalies of Kilauea by Suomi NPP VIIRS / EOSDIS Worldview

Kilauea - Halema'uma'u - 06.05.2018 The summit lava lake has dropped significantly over the past few days, and this evening was roughly 220 m below the crater rim.- HVO