f PRELIMINARY INTERPRETATION OF RECENT JOĂO CĂMARA SEISMICITY RECORDED BY THE 1987-88 TELEMETRIC NETWORK

A magnitude 3.0 event on the 5th August 1986 began the longest sequence of earthquakes recorded in northeast Brazil (for preliminary analysis see Ferreira et a1 1987). Some 30,000 events were recorded in the 35 months from August 1986, including 17 above magnitude 4.0 and one of 5.1. A local telemetric network of nine stations was operated between May 1987 and April 1988 and recorded about 4,000 events on analogue magnetic tape at a single base station. This project was supported jointly by several Brazilian and UK Agencies including SUDENE and the British Council.