1970
- February 10
- Dry powder avalanche moving at 120 mph smashes into youth hostel killing 40 Belgian, French, and German youths (Val d'Isere, France). [1]
- February 11
- 26.37 cm (10.38 inches) of rainfall, Mount Washington, New Hampshire (state 24-hour record). [1]
- February 24
- 29 Swiss Army officers die in avalanche (Reckingen, Switzerland). [1]
- March 28
- 1,086 die when 7.3 earthquake destroys 254 villages in Gediz, Turkey. [1]
- April 16
- 70 die in an avalanche (France). [1]
- May 31
- At 03:23 PM, Yungay, Peru levelled by 7.75 earthquake (50-70,000 die). [1]
- August 3
- Hurricane "Celia" becomes most expensive Gulf storm in history. [1]
- September 5
- Estimated 15 cm (6 inches) of rainfall, Bug Point, Utah (state record). [1]
- November 13
- Cyclone kills estimated 300,000 in Chittagong, Bangladesh. [1]
1971
- January 23
- Prospect Creek Camp, Alaska, (north of Fairbanks) reaches a record low temperature of -80 degrees F. [1] [32.23]
- February 9
- Earthquake in San Fernando Valley kills 65 and causes over US$500 million damage. [1]
- February 21
- Series of tornadoes cuts through Mississippi and Louisiana killing 117. [1]
- March 18
- 200 die in landslide into Lake Yanahuani, Chungar, Peru. [1]
- April 5
- Mount Etna erupts in Sicily, Italy. [1]
- April 26
- Heaviest rains ever in Bahia district of Brazil, 15 inches in 24 hours. [1]
1972
- January 12
- Juneau, Alaska, reaches a record low temperature: -22 degrees F. [32.22]
- March 20
- Nineteen mountain climbers killed on Japan's Mount Fuji during an avalanche. [1]
- April 10
- 7.0 earthquake kills one-fifth of population of Iranian province of Fars. [1]
- June 9
- 14 inches of rain in six hours burst Rapid City, South Dakota dam, drowns 200. [1]
- June 23
- Hurricane Agnes is costliest natural disaster in American history. [1]
- July 22
- 27.53 cm (10.84 inches) of rainfall, Fort Ripley, Minnesota (state 24-hour record). [1]
- December 23
- 6.25 Earthquake destroys central Managua, Nicaragua; 10,000-20,000 die. [1]
1973
- January 23
- Helgafell, island of Heimaey Iceland erupts for first time in 7,000 years. [1]
- July 7
- 78 drown as flash flood sweeps a bus into a river (India). [1]
- July 23
- Ozark Air Lines' plane knocked out of the air by lightning over Saint Louis - 36 die. [1]
- August 28
- 6.8 earthquake centered in Oaxaca State in Mexico kills 527. [1]
1974
- January 16
- L A landslide kills 9, Canyonville, Oregon. [1]
- March 11
- Mount Etna in Sicily erupts. [1]
- April 3
- In the USA, 148 tornadoes are reported over an area covering a dozen states in the east, south and midwest killed approximately 315. [1]
- April 26
- Landslide in Huancavelica Province, Peru creates a natural dam. [1]
- September 18
- Hurricane Fifi strikes Honduras with 110 mph winds, 5,000 die. [1]
- December 25
- Cyclone Tracy virtually destroys Darwin, Australia. [1]
- December 28
- 6.3 earthquake strikes Pakistan; 5200 killed. [1]
1975
- May 6
- Early warnings provided by REACT (ham radio operators) means only three people die in tornado that strikes Omaha, Nebraska. [1]
- May 13
- Hail stones as large as tennis balls hit Wernerville, Tennessee. [1]
- June 28
- Golfer Lee Trevino is struck by lightning at Western Open (Illinois). [1]
- June 29
- 20.57 cm (8.10 inches) of rainfall, Litchville, North Dakota (state 24-hr record). [1]
- July 7
- Juneau, Alaska, reaches a record high temperature: 90 degrees F. [32.22]
- July 8
- Earthquake damages over 2,000 temples in Pagan, Burma. [1]
- July 13
- 8.5 inches (21.6 cm) of rainfall in Dover, Delaware (US state record). [1]
- September 6
- 6.8 earthquake along Anatolian Fault kills over 2,000 in Lice, Turkey. [1]
- September 30
- Five drown in flash flood of sewer and water tunnel (Niagara Falls, New York). [1]
- November 10
- Ore ship Edmund Fitzgerald and crew of 29 lost in storm on Lake Superior. [1]
- November 29
- Kilauea Volcano erupts in Hawaii. [1]
1976
- February 4
- 7.5 earthquake kills 22,778 in Guatemala and Honduras. [1]
- May 17
- Earthquake in Uzbekistan: thousands killed. [1]
- July 28
- 242,000 die in Tientsin-Tangshan (China) 8.2 earthquake. [1]
- Year
- Global mean surface temperature at lowest point since 1964, beginning of gradual rise through at least 2007. [58]
1977
- February 1
- Heavy blizzard in New England claims 100 lives. [1]
- February 8
- Earthquake in San Francisco, California, at 5.0, strongest since 1966. [1]
- March 4
- Earthquake in Romania kills 1,541. [1]
- July 20
- Flash flood hits Johnstown, Pennsylvania, kills 80 and causing US$350 million damage. [1]
1978
- February 6
- Snowstorm hits New England (54 inches (137cm)). [1]
- September 16
- 25,000 die in 7.7 earthquake in Iran. [1]
1979
- January 12
- Record blizzard strikes American midwest killing over 100. [1]
- February 13
- Washington State's Hood Canal Bridge breaks up in windstorm. [1]
- February 18
- Snow falls in the African Sahara Desert. [1]
- July 26
- Estimated 109 cm (43 inches) of rain falls in Alvin, Texas (national record). [1]
- September 3
- Hurricane David, a strong Atlantic storm, kills over 1,000. [1]
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