High-frequency observations and source parameters of microearthquakes recorded at hard-rock sites
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Abstract
We have estimated the source parameters of 53 microearthquakes recorded in July 1983 which were aftershocks of the Miramichi, New Brunswick, earthquake that occurred on 9 January 1982. These events were recorded by local three-component digital seismographs at 400 sps/component from 2-Hz velocity transducers sited directly on glacially scoured crystalline basement outcrop. Hypocentral distances are typically less than 5 km, and the hypocenters and the seven digital seismograph stations established all lie essentially within the boundaries of a granitic pluton that encompasses the faults that ruptured during the main shock and major aftershocks. The P-wave velocity is typically 5 km/sec at the surface and at least 6 km/sec at depths greater than about 1 km.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | High-frequency observations and source parameters of microearthquakes recorded at hard-rock sites |
| Series title | Bulletin of the Seismological Society of America |
| DOI | 10.1785/BSSA0750061535 |
| Volume | 75 |
| Issue | 6 |
| Year Published | 1985 |
| Language | English |
| Publisher | Seismological Society of America |
| Contributing office(s) | Earthquake Science Center |
| Description | 33 p. |
| First page | 1535 |
| Last page | 1567 |
| Country | Canada |
| Other Geospatial | Miramichi |
| Google Analytic Metrics | Metrics page |