May 29, 1997



An earthquake of ML 3.3 shook the Arizona strip region last night. The earthquake was felt and recorded at Pipe Springs National Monument and minor damage was reported by the Park Service. The earthquake occurred in the same location as three ML 2.8-3.5 events in January of this year. These earthquakes occurred approximately 25 km south of the Arizona-Utah border, in between two major fault systems, the Hurricane to the west and the Toroweap fault system to the east. These earthquakes occurred 55 km southwest of Fredonia, Arizona, the location of a ML 1.5-2.5 earthquakes in the vicinity of Grand Canyon Village between 10:00pm last night and 2:00am this morning.

The data for last night's earthquake is as follows: