Press Release
Seismological Laboratory
University of Nevada, Reno

22 December 1995

A magnitude 4.7 earthquake occurred early this morning about 2 miles west of Holbrook Junction, 17 miles southeast of Gardnerville. The preliminary location by the University of Nevada Seismological Laboratory is 38 deg 44.01' north latitude, 119 deg, 35.41' west longitude. The preliminary depth is 6.7 km. The time of this morning's event is December 22, 1995, at 34 seconds after 1:00 AM, Pacific Standard Time. The Seismological Laboratory has not received any reports of damage at this time.

As of 9:00 AM, the Seismological Laboratory had recorded 8 aftershocks of this morning's event. The largest were at 2:16 AM (preliminary magnitude 3.1) and 5:11 AM (preliminary magnitude 3.3).

This event is in the vicinity of the September 12, 1994, Double Spring Flat earthquake, and can be correctly described as an aftershock of that earlier event. The Double Spring Flat earthquake had a magnitude 6.0. Today's earthquake occurred about 6 miles southeast of the epicenter of the Double Spring Flat, and extends the aftershock zone slightly towards the southeast, towards Antelope Valley. This morning's earthquake had a strike slip mechanism. We will provide a map of the locations of this event and its relationship to the Double Spring Flat earthquake sequence on request.

The data reported here is preliminary. For more information, contact the Seismological Laboratory at 702-784-4975, or at the WWW site http://www.seismo.unr.edu. The free pamphlet Earthquakes in Nevada and How to Survive Them, is available on request.


Press Release
Seismological Laboratory
University of Nevada, Reno

28 December 1995 11:00 AM PST

A magnitude 4.9 earthquake occurred this morning about 2 miles west of Holbrook Junction, 17 miles southeast of Gardnerville. The preliminary location by the University of Nevada Seismological Laboratory is 38 deg 43.62' north latitude, 119 deg, 36.71' west longitude. The preliminary depth is 7 km. The time of this morning's event is December 28, 1995, at 10:28 AM, Pacific Standard Time. The Seismological Laboratory has not received any reports of damage at this time.

Seismological Laboratory is recording an intense aftershock sequence, but they are mostly too small to be felt.

Like the events on December 22, this event is in the vicinity of the September 12, 1994, Double Spring Flat earthquake, and can be correctly described as an aftershock of that earlier event. The Double Spring Flat earthquake had a magnitude 6.0. Today's earthquake occurred about 7 miles southeast of the epicenter of the Double Spring Flat, and extends the aftershock zone slightly towards the southeast, towards Antelope Valley. We will provide a map of the locations of this event and its relationship to the Double Spring Flat earthquake sequence on request.

The data reported here is preliminary. For more information, contact the Seismological Laboratory at 702-784-4975, or at the WWW site http://www.seismo.unr.edu. The free pamphlet Earthquakes in Nevada and How to Survive Them, is available on request.