Earthquake in Papua New Guinea today, quake of magnitude 7.4: one dead and several injured

Earthquake in Papua New Guinea today, quake of magnitude 7.4: one dead and several injured
Earthquake in Papua New Guinea today, quake of magnitude 7.4: one dead and several injured
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The Richter scale was only developed in 1935, but even before that date it is possible to estimate the approximate magnitude of seismic events. The peak was recorded in the 1960 earthquake in Valdivia, Chile. As for the most catastrophic ones, most date back to distant times and in many cases the death toll is an estimate. The worst is thought to have been the Shaanxi earthquake in China in 1556, which claimed approximately 820,000 lives.

THE earthquakes they are among the most feared natural events by man, given their unpredictability and the possible catastrophic effects they can generate. The current system for calculating the strength of an earthquake is the scale Richter, introduced in the 1930s. But seismographs, even in rudimentary forms, have existed for centuries and it is therefore also possible to roughly estimate the degree of power of past earthquakes. Here are the worst

VALDIVIA EARTHQUAKE – On May 22, 1960 there was the “great earthquake of Chile”, the most powerful to date, with a magnitude of 9.5. It was warned in different parts of the world and caused a tsunami with waves up to 25 meters high that reached the Asian coasts. It also caused the Puyehue volcanic activity to resume. The low population density caused a relatively low number of victims, about 3 thousand

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EARTHQUAKE OF ALASKA – On March 27, 1964 (3 am on March 28 for the UTC time zone) Alaska was devastated by an earthquake measuring 9.2 in the Prince William Strait. In Anchorage, buildings collapsed and cracks formed in the streets. A tsunami with waves of 30 meters was also generated. The victims were 143 and the estimated damages were about 2.5 billion dollars

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The article is in Italian

Tags: Earthquake Papua Guinea today quake magnitude dead injured

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