Tremor and its duration-amplitude distribution at Popocatépetl volcano, Mexico
Por:
Arambula-Mendoza, R., Valdes-Gonzalez, C., Varley, N., Reyes-Pimentel, T. A., Juarez-Garcia, B.
Publicada:
1 sep 2016
Resumen:
The duration-amplitude distribution was calculated for the tremor observed at Popocatépetl volcano during episodes of activity in 2000 and 2012–2014. An exponential function was used to obtain a good fit for the duration-amplitude distribution, and the source of volcanic tremor is probably generated by the transportation of magmatic fluids and its coupling with the host rock within the volcanic conduit. In particular, harmonic tremor has shown large amplitudes, durations, and mean values of amplitude, more than spasmodic or pulsating tremor. This is due to different generation mechanisms: in the case of harmonic tremor, it is produced during magma ascent and lava dome growth, while spasmodic and pulsating tremors are associated with fragmentation of the lava dome and gas emissions. This paper presents the duration-amplitude distribution as a method to estimate the intensity of the tremor at Popocatépetl, a volcano with the major risk in all Mexico. ©2016. American Geophysical Union. All Rights Reserved.
Filiaciones:
Arambula-Mendoza, R.:
Univ Colima, Ctr Univ Estudios & Invest Vulcanol, Colima, Mexico
Valdes-Gonzalez, C.:
Univ Nacl Autonoma Mexico, Inst Geofis, Mexico City, DF, Mexico
Ctr Nacl Prevenc Desastres, Mexico City, DF, Mexico
Varley, N.:
Univ Colima, Fac Ciencias, Colima, Mexico
Reyes-Pimentel, T. A.:
Ctr Nacl Prevenc Desastres, Mexico City, DF, Mexico
Juarez-Garcia, B.:
Ctr Nacl Prevenc Desastres, Mexico City, DF, Mexico
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