Most powerful earthquakes

Earthquakes with a Richter scale reading of more than 5,5 have caused great loss of life and property. Those with a reading of 7 cause huge destruction. In the 20th century, many measured more than 8. The most powerful measured 8 and 9. Scientists think that the 1755 quake that destroyed Lisbon in Portugal may have been more powerful. It shook lakes in Norway, 2720km away. Many scientists say the worst was in China in 1556 when more than 800000 people died. - bigsiteofamazingfacts.com; earthquakecountry.info; infoplease.com

Earthquakes with a Richter scale reading of more than 5,5 have caused great loss of life and property. Those with a reading of 7 cause huge destruction. In the 20th century, many measured more than 8. The most powerful measured 8 and 9. Scientists think that the 1755 quake that destroyed Lisbon in Portugal may have been more powerful. It shook lakes in Norway, 2720km away. Many scientists say the worst was in China in 1556 when more than 800000 people died. - bigsiteofamazingfacts.com; earthquakecountry.info; infoplease.com

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