Calderas are among the most active and dangerous volcanoes. Caldera unrest is defined by
enhanced seismicity, gravity changes, surface deformation, and degassing. Although much …

When a large earthquake occurs near an active volcano, there is often concern that volcanic
eruptions may be triggered by the earthquake. In this study, recently accumulated, reliable …

The complex volcanic system of Tenerife Island is known to have a highly heterogeneous
character, as recently confirmed by velocity tomography. We present new information …

Many calderas show remarkable unrest, which often does not culminate in eruptions (non-
eruptive unrest). In this context the interpretation of the geophysical data collected by the …

We estimated the depth of the magma chamber system beneath Usu volcano, one of the
most active volcanoes in Japan, by melting experiments on the eruptive product of the ad …

In this work, we present regional maps of the inverse intrinsic quality factor (Q i− 1), the
inverse scattering quality factor (Q s− 1) and total inverse quality factor (Q t− 1) for the …

Asama volcano is an active volcano with many historical records of Vulcanian eruptions. Its
most recent eruptions occurred in 2004 at the summit crater. In this paper, we argue the …

We performed refraction analysis for the first P-wave arrival time data observed in the
seismic experiment in 2008, and estimated a shallow velocity model up to 3 km depth …

We performed the first 3D seismic tomography of the Popocatépetl volcano, Mexico, from the
inversion of the P-wave arrival times of nearly 1500 earthquakes recorded by up to 11 …

In the present paper we describe the on-land field operations integrated in the TOMO-ETNA
experiment carried out in June-November 2014 at Mt. Etna volcano and surrounding areas …