On December 5, a powerful earthquake with a magnitude of 7.0 occurred off the coast of Northern California. About this reported US Geological Survey.
After that, the US National Weather Service announced warning of the possibility of a tsunami for some coastal areas of the states of Northern California and Oregon.
“A tsunami warning means that a tsunami with significant inundation is possible or already occurring. A tsunami is a series of waves that are dangerous for many hours after they first arrive. The first wave may not be the largest.” – said in the announcement.
Immediately after the announcement of the tsunami warning, the authorities began to evacuate residents of settlements in the states of California and Oregon that could be affected by possible flooding. In total, more than 4 million people received official notifications about the threat of a natural disaster.
Tsunami waves are expected to reach San Francisco, the service said. By information CNN, citing the US Geological Survey, classifies 7.0 magnitude earthquakes as strong. Such seismic events occur in the world on average 15 times a year.
