Why are there several solutions for the same event, often with different magnitudes and locations?
There are several reasons for different reporting bodies producing different locations and magnitudes for the same earthquake. The most fundamental cause is the location and number of seismic stations that recorded the earthquake. The magnitude and the location of a given earthquake is preferably determined using more than one seismic station. A suite of seismic stations distributed around the earthquake’s epicenter and have a range of source/station distances can typically yield better location and magnitude estimates than a single station far away. However, other factors can also introduce additional deviations in the measurement such as differences in the recording capabilities of the seismic sensors, the seismic analyst making the measurement and variations in the geology and tectonics of the region. A rule of thumb used by some seismologists is that magnitude estimates can typically deviate by 0.5 magnitude units, and the mapped location of the earthquake (latitude, longitude) is
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