Type Description Category ---------------------------------------------------- le local earthquake earthquake re regional earthquake earthquake ts teleseismic eartquake earthquake se slow earthquake earthquake lp long period volcanic earthquake earthquake to tornillo wavelet earthquake tr non-volcanic tremor tremor vt volcanic tremor tremor nt nuclear test explosion qb quarry blast explosion ce calibration explosion ex generic chemical blast explosion sh refraction/reflection survey shot explosion sn sonic shockwave atmospheric th thunder atmospheric ve volcanic eruption earth movement co mine/tunnel collapse earth movement df debris flow/avalanche earth movement av snow/ice avalanche earth movement ls landslide earth movement rb rockburst earth movement rs rockslide earth movement bc building collapse/demolition impact pc plane crash impact mi meteor/comet impact impact st subnet trigger unknown uk unknown type unknown ot other miscellaneous unknown