Romania, Bucharest: 1988-2022

The Bucharest cluster is named for Bucharest, Romania. All earthquakes are magnitude 4.0 or smaller. All events have observations to at least 3° but there are few arrival time data beyond about 6°. The calibration is very robust and all events have depth control from near-source or local-distance readings. The cluster contains several events with very shallow focal depths, which may be related to mining. There are many mining events in the catalog but they are seldom observed beyond 3° and were dropped from the cluster. Number of events: 40 Calibration type: direct calibration using data to 0.6 degrees; hypocentroid [...]