Activity of Sabancaya, Pacaya, Aso, Villarica and Mauna Loa.

In Peru, an explosion was recorded on 25 July at 13:41 in Sabancaya; it was accompanied by a plume of ash and gas reaching 3,000 meters. The ashes drifted to the northeast.

Sources: IG Peru and ICCSV

The Pacaya presented on July 25 a degassing of moderate height, 150 meters above the crater, dispersing towards the south. Lava flows move on the north flank, and generate small avalanches of blocks at the front of flows

Sources: Insivumeh & Conred

On Kyushu in Japan, small intermittent ash emissions are reported on July 25th and 26th, associated with the groundwater activity of the Asosan / Nakadake crater.

The plume of the July 26 episode at 7:57 am climbed to an altitude of 1,600 meters!

Sources: JMA, RSOE, VAAC Tokyo

An overflight of Villarica on July 25 confirms the presence of a lava lake at the summit, at a depth less than that of previous days. The presence of ballistic pyroclasts around the crater justifies the respect of an affected zone of 500 meters radius around the crater.

Source: Sernageomin

The last activity report of Mauna Loa of 25 July / 20h14 UTC confirms for the past week high deformation and seismicity ratios. The Mauna Loa is not erupting, but the Volcano is Advisory and the Yellow Aviation Code.

GPS and InSAR measurements show continued peak inflation, suggesting a recharge of the superficial magma storage system.

At the seismicity level, 75 earthquakes, mostly of magnitude less than 2.0, occurred during the week under the summit zone and the upper southwest rift zone, at a depth of less than 5 km.

No change in Sulfur degassing cone over the southwest rift zone was measured.

The temperature of the fumaroles, both in the Sulfur cone and at the summit, remains unchanged.

Source: HVO