Large Moment Magnitude (Mw) Earthquake Archive

April 1997
Total Number of Mw >6.0 Earthquakes per Month = 15
Cumulative Number of Mw >6.0 Earthquakes per Year = 38

Total Number of Mw >7.0 Earthquakes per Month = 1
Cumulative Number of Mw >7.0 Earthquakes per Year = 4

Date Time

Lat

Lon

Depth

Mw
Location
Apr 01

1833

18.30S

69.53W

114

6.1
* Northern Chile
Apr 01

1842

18.35S

69.34W

116

6.2
* Northern Chile
Apr 01

1511

7.85N

81.83W

15

6.1
* South of Panama, East Pacific
Apr 02

0614

11.42N

60.90W

31

6.1
* Trinidad/Tobago Region, Windward Islands, Caribbean
Apr 05

1223

6.42S

147.01E

63

6.4
Eastern Papua New Guinea
Apr 11

0534

39.50N

76.97E

6

6.1
Western Xianjaing, China
Apr 12

0922

28.00S

178.55W

182

6.0
Kermadec Islands, South Pacific
Apr 21

1202

12.47S

166.21E

26

7.8
* Santa Cruz/Vanuatu Islands, South Pacific
Apr 21

1211

13.51S

166.57E

33

6.2
# Santa Cruz/Vanuatu Islands, South Pacific
Apr 21

1402

7.40S

125.70E

434

6.0
# Banda Sea, Indonesia
Apr 22

0931

10.97N

61.57W

4

6.7
Trinidad/Tobago Region, Windward Islands, Caribbean
Apr 23

0347

13.54S

166.02E

5

6.1
Santa Cruz/Vanuatu Islands, South
Apr 23

1944

14.22N

144.58E

90

6.5
Guam, Mariana Islands, West Pacific
Apr 27

0031

19.16S

168.67E

40

6.1
Santa Cruz/Vanuatu Islands, South Pacific
Apr 28

1207

42.13S

43.29E

18

6.5
Prince Edward Island Region, Southwest Indian Ocean
Source: U.S. Geological Survey, National Earthquake Information Center; Harvard Geophysical Observatory, Harvard University (magnitudes with " * " are HRV).
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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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