High-Frequency (Hf) Earthquake
High-Frequency (Hf) Earthquake :
In volcano seismology, generally synonymous with volcano-tectonic, brittle-failure, or A-type earthquake. See Chapter 13 in this Manual and McNutt (2002). In general, earthquakes that radiate more than (magnitude-dependent) average of high-frequencies are characterized by higher than average stress-drop and/or rupture velocity
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