A strong earthquake registered by the USGS as M6.2 hit near the west coast of Guadeloupe at 11:23 UTC on January 20, 2023. The agency is reporting a depth of 165 km (102 miles). EMSC is reporting the same magnitude and depth.
After a run of particularly wet weather for New Zealand’s Gisborne region, one location has beaten its record for the highest January rainfall since 1937.
Tropical Cyclone “Cheneso” formed around 12:00 UTC on January 18, 2023, as the fourth named storm of the 2022/23 Southwest Indian Ocean cyclone season.
New activity/unrest was reported for 5 volcanoes from January 11 – 17, 2023. During the same period, ongoing activity was reported for 15 volcanoes.
A new study published in AGU’s Geochemistry, Geophysics, Geosystems has revealed the existence of a magma chamber beneath the Kolumbo volcano, located near Santorini, Greece. Using a high-resolution technology called full-waveform inversion, the study found that the magma chamber poses a serious hazard as it could produce a highly explosive, tsunamigenic eruption in the near future.
Observational data shows an increase in seismicity at Indonesia’s Dieng volcano, prompting the Indonesian Centre for Volcanology and Geological Hazard Mitigation (PVMBG) to raise the Alert Level from 1 to 2 (on a scale of 4) on January 13, 2023. The Dieng Volcanic Complex, which is made up of multiple stratovolcanoes and more than 20 small Pleistocene-to-Holocene craters, last erupted in April 2021 (VEI 1).
Tropical Cyclone “Irene” formed on January 18, 2023 north of New Caledonia as the 4th named storm of the 2022/23 Australian region cyclone season.
A strong and shallow earthquake registered by the USGS as M5.8 hit Turkey-Iran border region at 10:08 UTC on January 18, 2023. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting M5.6 at a depth of 2 km (1.2 miles).
The Volcanology and Geological Disaster Mitigation Center (PVMBG) reported that beginning in July 2022, the seismic network at Ijen volcano in East Java, Indonesia began detecting increasing numbers of shallow volcanic earthquakes and earthquake signals characteristic of emissions, indicating increasing pressure at shallow depths within the hydrothermal system.
Intense strombolian activity continues at Villarrica volcano, Chile, with lava fountains reaching up to 150 m (490 feet) in height. The Alert Level remains at Yellow (the second lowest level on a four-color scale).
