Open AccessOn the Dalmatian earthquake of 11962 January 7
Author(s) -
Jeffreys Harold
Publication year - 1975
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1975.tb01611.x
Subject(s) - seismology , geology , azimuth , variation (astronomy) , geodesy , earthquake prediction , mathematics , physics , astrophysics , geometry
Summary An earthquake studied previously for distances up to 24° is re‐examined on account of many additional observations reported in the International Seismologicsl Summary. The times of P were compared with Jeffreys's solution of 1953 for European earthquakes. There is a suggestion that that solution is about right up to 40′′ but that corrections about ‐3s are needed from 40° to 80° and ‐2s beyond 80°. The ISS infers slight focal depth, but data on other phases lead to no consistent solution. There is no convincing evidence for variation with azimuth. Less than half the stations reported S and the results are scattered. These data add no new information to the solution up to 20′′ found in 1964. There are signs that corrections of ‐1 to ‐2 s to the 1939 tables are needed from 22° to 80°.