Two types of tremor have been identified : one associated with geodetic deformation ( as described above ) , and one associated with 5 to 10 second bursts excited by distant earthquakes . The second type of tremor has been detected worldwide ; for example , it has been triggered in the San Andreas Fault by the 2002 Denali earthquake and in Taiwan by the 2001 Kunlun earthquake
2002 Denali earthquake
2002 Denali earthquake
Episodic tremor and slip