El 23 de junio del 2020, a las 15:29 UTC (10:29 am hora local), se registró un sismo con epicentro 23 Km al sur de Crucecita, Oaxaca, México, M 7.4, efecto de la interacción entre la placa de Cocos y la placa Norteamericana. De acuerdo a los datos del Servicio Sismológico Nacional (SSN), las coordenadas del epicentro son 15.784° latitud N y 96.120° longitud W, a una profundidad de 22.6 km .El mecanismo focal del evento (rumbo = 266.8°, echado = 17.2°, deslizamiento = 60.5°) corresponde a una falla inversa, que alcanzó un deslizamiento máximo de 3.19 m (SSN), debido a la interacción entre la placa de Cocos, que subduce bajo la placa Norteamérica a una velocidad de 60 mm / año en esta zona (USGS).
On 23 June, 2020, a magnitude 7.4 subduction earthquake struck western Mexico and let the earthquake early warning sirens sound in the capital. Reportedly, ten people lost their lives and thousands of houses were damaged in Oaxaca.T he report includes data on structural damage, landslides, rock falls, ground cracks, and the small tsunami that was observed. Such data are used as input values for determining the Environmental Seismic Intensity of earthquakes using the ESI2007 scale developed under the umbrella of INQUA.
Environmental Effects of the 23 June, 2020, M 7.4, Oaxaca, Mexico Earthquake
Sabina Porfido;
2020
Abstract
On 23 June, 2020, a magnitude 7.4 subduction earthquake struck western Mexico and let the earthquake early warning sirens sound in the capital. Reportedly, ten people lost their lives and thousands of houses were damaged in Oaxaca.T he report includes data on structural damage, landslides, rock falls, ground cracks, and the small tsunami that was observed. Such data are used as input values for determining the Environmental Seismic Intensity of earthquakes using the ESI2007 scale developed under the umbrella of INQUA.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
