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http://hdl.handle.net/2122/1730| Authors: | Musson, R. M. W. | Title: | Determination of parameters for historicaI British earthquakes | Issue Date: | Oct-1996 | Series/Report no.: | 5/39 (1996) | URI: | http://hdl.handle.net/2122/1730 | Keywords: | Earthquake depth earthquake magnitude historical earthquakes |
Subject Classification: | 04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous | Abstract: | Examination of 20th century data from the U.K. shows a good correlation between felt area and instrumental magnitude, producing good magnitude values for historical earthquakes where felt area is known; this is a more reliable method than using I0. The equations: ML = 1.03 log A3:; -0.19; ML = 0.92 log A4 + 0.71 give magnitude from areas within isoseismals 3 and 4 MSK. Dcpths for historical earthquakes have also been obtained using a modification of the well-known Sponheuer method, using the program MACDEP; the regional value for (á is 0.003 and depths for events with magnitude above 4 ML range from 3 to 25 km. |
| Appears in Collections: | Annals of Geophysics |
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|---|---|---|---|---|
| 12 musson.pdf | 2.07 MB | Adobe PDF | View/Open |
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