Micro-Earthquake At Marysville Mt Area (Blackwell)
Exploration Activity: Micro-Earthquake At Marysville Mt Area (Blackwell)
|Exploration Activity Details|
|Location||Marysville Mt Area|
A seismic ground noise was carried out but the ground noise in the anomaly area (and the surrounding region) was extremely low, approximately 4 orders of magnitude below that observed in the geothermal areas in the Salton Sea between 1-10 Hz (in units of power density). Because of this very low background noise the micro-earthquake survey was possible with instrument gains well in excess of a million. Regional micro-earthquake activity was located within about 15 km of the geothermal area but no micro-earthquakes were located within the geothermal anomaly itself.
- D. D. Blackwell (Unknown) Exploration In A Blind Geothermal Area Near Marysville, Montana, Usa