100 Years of Earthquakes
Japan's earthquake shook the entire world. We talked about it here. Photographs of the earth and air.
Summary of the Geological Society of London of the most powerful earthquake in the last 100 years. In order to understand the power of aftershocks - a little help.
What is the magnitude of 1. If it is very rude - imagine that you have jumped to the floor apartments with closet. Your neighbors will feel virtually no vibration. Earthquake at 2 points almost palpable. The increase in magnitude at 1.0 corresponds to an increase in amplitude in 10-fold increase in energy is about 32 times. In Japan it was 9.1. ::::::::::::::
1. April 18, 1906, San Francisco ::=> At 5:12 am in San Francisco there was a major earthquake, whose magnitude was 7.8 on the Richter scale. Tremors were felt even in the middle of Nevada, located deep in the continent. As a result of the disaster, almost 80% of the buildings in the city of San Francisco was destroyed, their homes were 300 000, 3000 - died.
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