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- W1998616288 abstract "Hypocenter determination of micro-earthquakes of Mount X-1 geothermal field has been conducted using simulated annealing and guided error search method using a 1D seismic velocity model. In order to speed up the hypocenter determination process a three-circle intersection method has been used to guide the simulated annealing and guided error search process. We used P and S arrival time's microseismic data. In the simulated annealing and guided error search processes, the minimum travel time from a source to a receiver has been calculated by employing ray tracing with shooting method. The resulting hypocenters from the above process occurred at depths of 3-4 km below mean sea level. These hypocenter distributions are correlated with previous study which was concluded that the most active microseismic area in which the site of many fractures and also vertical circulation place. Later on, resulting hypocenters location was used as input to determine 1-D seismic velocity using joint hypocenter determination method. The results of VELEST indicate show low Vp/Vs ratio value at depths of 3-4 km. Our interpretation is this anomaly may be related to a rock layer which is saturated by vapor (gas or steam). Another feature is high Vp/Vs ratio value at depths of 1-3 km that may related to a rock layer which is saturated by fluid or partial melting. We also analyze the focal mechanism of microseismic using ISOLA method to determine the source characteristic of this event." @default.
- W1998616288 created "2016-06-24" @default.
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- W1998616288 date "2013-01-01" @default.
- W1998616288 modified "2023-09-23" @default.
- W1998616288 title "Hypocenter determination using simulated annealing, updated 1D seismic velocity model and focal mechanism analysis" @default.
- W1998616288 doi "https://doi.org/10.1063/1.4820341" @default.
- W1998616288 hasPublicationYear "2013" @default.
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