Attenuation of seismic waves in the Trinidad and Tobago area
| dc.contributor | The University of the West Indies | |
| dc.creator | Latchman, Joan L. "et al." | |
| dc.date | 1993 | |
| dc.date.accessioned | 2018-03-14T14:13:47Z | |
| dc.date.available | 2018-03-14T14:13:47Z | |
| dc.description | The attenuation of seismic waves from earthquakes located within the area bounded by 9-12°N and 60-63°W was estimated from short-period seismograms. Coda- Q, Qc, determinations were made for each of the six seismograph stations within the area, while spectral Q values from P-phases, Qα, were estimated for station TRN. The S-S single-scattering model was assumed for coda generation, and the ω-2 source model was assumed for the spectral Q determinations. The Qc values show a strong frequency dependence in the frequency range 1.5-12 Hz. The value of Q at 1 Hz, Qo, was found to lie within the range 107-132, while the rate of frequency dependence, n, extends from 0.80 to 1.06 for shallow events. For intermediate-depth events, Qo varies from 101 to 173 and n from 0.80 to 1.02. The Qα values obtained show a spatial variation within the region, the highest attenuation was obtained on land Trinidad. | |
| dc.identifier | DOI: 10.1016/0040-1951(95)00050-X | |
| dc.identifier.uri | https://hdl.handle.net/2139/45475 | |
| dc.publisher | Elsevier Science B.V. | |
| dc.source | Tectonophysics, Volume 253, Issue 1, p. 111-127. | |
| dc.subject | Earthquakes | |
| dc.subject | Trinidad and Tobago | |
| dc.subject | Seismic waves | |
| dc.subject | Coda Q | |
| dc.title | Attenuation of seismic waves in the Trinidad and Tobago area |
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