Seismo-Watch Archive of
Large Moment Magnitude (Mw) Earthquakes

July 1991
Total Number of Mw >6.0 Earthquakes per Month = 8
Cumulative Number of Mw >6.0 Earthquakes per Year = 71

Total Number of Mw >7.0 Earthquakes per Month = 1
Cumulative Number of Mw >7.0 Earthquakes per Year = 11

Date

Time

Lat

Lon

Depth

Mw
Loction**
Jul 1

1332

15.79S

075.01W

214

6.0*
Jul 2

0514

01.06S

099.84E

538

6.4
Jul 4

1143

08.09S

124.68E

288

6.9
Jul 5

0430

09.58S

114.67E

537

6.1
Jul 6

1219

13.10S

027.18W

104

7.0
Jul 13

0250

42.18N

125.64W

110

6.9
Jul 13

1215

48.73N

154.93E

405

6.2*
Jul 14

0909

36.33N

071.11E

212

6.7*
Source: U.S. Geological Survey, National Earthquake Information Center; Harvard Geophysical Observatory, Harvard University (magnitudes with " * " are HRV). ("**" = Physical locations are not available from these cataloges and will have to be hand entered at a future date.

Disclaimer and Limitations
All data are preliminary and subject to change. Much of the information, including time, date, location, depth and magnitude, are determined by automatic processing. Future analysis may develop changes in these data. This data may not be reproduced, in part or in full, or by any form, including re-fax or re-mail transmissions, without prior written authorization from Advanced Geologic Exploration.

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