Volcano number:273083
Region:Philippines and SE Asia
Geodetic measurements?Yes
Deformation observation?Yes
Measurement method(s):Tiltmeter
Duration of observation:1991
Inferred cause of deformation:
Characteristics of deformation:

Tiltmeters detected 50 rad of cumulative tilt over the three days prior to the magma presumably reaching the surface and a lava dome beginning to form on June 7 1991 (Ewert et al., 1996).

Reference:Ewert, J.W., Lockhart, A.B., Marcial, S. and Ambubuyog, G., 1996. Ground deformation prior to the 1991 eruptions of Mount Pinatubo. Fire and Mud. Eruptions and lahars of Mount Pinatubo, Philippines. University of Washington Press, Seattle, pp.329-338.
Location:120.35, 15.13