Pn-wave observations in Costa Rica
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Resumen
Tiempos de arribos, medidos en la Red Sismográfica de Costa Rica, fueron empleados para extraer información sobre la corteza y el manto por debajo de Costa Rica. Datos de tiempos de arribo de la onda P y S de 100 sismos locales y regionales ocurridos durante el período 1984-1990 fueron usados para obtener la velocidad Pn, la razón de Poisson, la anisotropía de la velocidad Pn y la correción de las estaciones. La razón de Poisson para la capa superior del manto por debajo de Costa Rica es 0.265 y la velocidad de Pn encontrada es de 7.81 km/sec. La presente investigación no muestra variaciones anisotrópicas significantes para la onda Pn. La profundidad del Moho se calcula en 34 km, aproximadamente.
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