Meteorological, Climatological, And Geophysical Agency

Temporal change in mass eruption rate estimated from co-eruptive seismograms during 2014–2018 eruption at Sinabung Volcano, Indonesia

Abstract An effusive eruption occurred at Sinabung volcano, Indonesia, from December 2013 to February 2018. The eruption peaked with violent pyroclastic density currents (PDCs) and a lava flow in the first three months of 2014 and then gradually declined. After the lava flow acti...

Spatiotemporal Distribution of Coseismic Slip During the 2025 Kamchatka Earthquake Inferred from Tsunami Waveform Data

ABSTRACT On 29 July 2025 (UTC), an earthquake with a moment magnitude of approximately 8.8 occurred along the plate interface of the Kamchatka subduction zone and generated a trans-Pacific tsunami. Using tsunami waveform data recorded at offshore stations, we conducted tsunami wa...

Coulomb-like creeping segment acts as a stress sensor in Northern Sumatra

Abstract Understanding how fault creep evolves in space and time is essential for identifying zones of aseismic stress release and stress accumulation. Creeping faults typically exhibit rate-strengthening friction, in which frictional resistance increases with sliding velocity an...