From the isoseismal map the depth was suggested to be about 60 km.

Many earthquake questionnaires were distributed for this event, and a good isoseismal map was prepared.

What are isoseismal maps?

He is also credited with coining the word "seismology" and other related words e.g. the isoseismal map, which he used in his research.

In seismology an isoseismal map is used to show lines of equal felt seismic intensity, generally measured on the Modified Mercalli scale.

The first known isoseismal map was produced for the 1810 earthquake in Mór in Hungary was published by Kitaibel and Tomtsányi in 1814.

Isoseismal maps show an elongation west to east with an area of intensity VIII affecting the western end of the Karaburun Peninsula of the Turkish mainland.

An isoseismal map constructed for this earthquake shows that the zone of maximum shaking was elongated in a NW-SE direction, parallel to the trace of the Xianshuihe Fault.

The magnitude of the event has been estimated as 7.6 on the moment magnitude scale from an analysis of an isoseismal map drawn up for this event, following a re-evaluation of earlier estimates of felt intensity.