Central Basin Platform seismicity for the period October 1, 1977, to June 30, 1978
No abstract available.
Open-File Report↗
Geology topics
A. M. Rogers
Publications and source records attributed to A. M. Rogers.
Seismicity of the Pahute Mesa area, Nevada Test Site: 8 October 1975 to 30 June 1976
A total of 1,075 earthquakes occurred in the Pahute Mesa area with 2.5≤M L ≤4.9 during the period October 28, 1975, to June 28, 1976. The majority of these earthquakes are aftershocks of the nuclear events, Kasseri, Inlet, Muenster, Fontina, Cheshire, Estuary, Colby, and Pool (5.8≤M L ≤6.3). Smaller nuclear events (M L ≤5.5) on Rainier Mesa and Yucca Flat detonated in the same time period did not trigger aftershock sequences. The aftershock series were displaced laterally from ground zero and occurred deeper (at 4–6 km) than the nuclear even depth of burial (~1 km). The aftershocks appear to occur on vertical faults with approximately north-south strike.
Nevada↗
A catalog of seismicity within 400 km of the Nevada Test Site
Explore the source record for details and available documents.
Open-File Report↗
The Pocatello Valley, Idaho, earthquake
A Richter magnitude 6.3 earthquake occurred at 8:31 p.m mountain daylight time on March 27, 1975, near the Utah-Idaho border in Pocatello Valley. The epicenter of the main shock was located at 42.094 ° N, 112.478° W, and had a focal depth of 5.5 km. This earthquake was the largest in the continental United States since the destructive San Fernando earthquake of February 1971. The main shock was preceded by a magnitude 4.5 foreshock on March 26.
Idaho; Utah↗