Number of Earthquakes Worldwide for 1970 - 1979
Located by the US Geological Survey National Earthquake Information Center

Magnitude 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
8.0 to 9.9 0 1 0 0 0 1 2 2 0 0
7.0 to 7.9 20 19 15 13 14 14 15 11 16 13
6.0 to 6.9 110 112 110 95 99 107 114 89 93 100
5.0 to 5.9 1195 1331 1316 1331 1312 1447 1649 1686 1526 1366
4.0 to 4.9 2355 2338 2300 2576 2598 2608 2550 2405 2602 3024
3.0 to 3.9 149 182 310 502 489 553 650 479 836 1280
2.0 to 2.9 13 18 6 11 24 41 53 54 111 99
1.0 to 1.9 0 0 0 0 3 0 0 0 4 1
0.1 to 0.9 0 0 0 0 0 0 0 0 0 0
No Magnitude 297 506 491 647 457 547 1275 1049 1240 1278
Total 4139 4507 4548 5175 4996 5318 6308 5775 6428 7161
Estimated
Deaths		 68202 1279 11179 659 5440 12372 697309 2849 15192 1475

Number of Earthquakes in the United States for 1970 - 1979
Located by the US Geological Survey National Earthquake Information Center

Magnitude 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
8.0 to 9.9 0 0 0 0 0 0 0 0 0 0
7.0 to 7.9 0 2 1 0 0 1+1 0 0 0 1+1
6.0 to 6.9 4 6 4 7 5 10 7 7 2 7
5.0 to 5.9 48 61 60 70 68 67 57 69 58 60
4.0 to 4.9 206 258 226 250 313 340 243 262 261 308
3.0 to 3.9 99 116 132 276 320 313 318 359 506 735
2.0 to 2.9 13 18 6 11 21 26 40 47 79 75
1.0 to 1.9 0 0 0 0 3 0 0 0 4 1
0.1 to 0.9 0 0 0 0 0 0 0 0 0 0
No Magnitude 66 136 181 278 132 120 128 135 111 124
Total 436 597 610 892 862 878 793 879 1021 1312
Estimated
Deaths		 0 65 0 0 0 2 0 0 0 0

URL: http://neic.usgs.gov/neis/eqlists/1970s.html