1978 Thessaloniki earthquake
Encyclopedia
The Great Thessaloniki Earthquake was an earthquake
that occurred on 20 June 1978, at 22:03 local time, and registered 6.6 on the moment magnitude scale
. It was felt throughout northern Greece, Yugoslavia
and Bulgaria
. It was the largest seismic activity in the area since 1932.
Earthquake
An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. The seismicity, seismism or seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time...
that occurred on 20 June 1978, at 22:03 local time, and registered 6.6 on the moment magnitude scale
Moment magnitude scale
The moment magnitude scale is used by seismologists to measure the size of earthquakes in terms of the energy released. The magnitude is based on the seismic moment of the earthquake, which is equal to the rigidity of the Earth multiplied by the average amount of slip on the fault and the size of...
. It was felt throughout northern Greece, Yugoslavia
Yugoslavia
Yugoslavia refers to three political entities that existed successively on the western part of the Balkans during most of the 20th century....
and Bulgaria
Bulgaria
Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...
. It was the largest seismic activity in the area since 1932.