According to the United States Geological Survey, several million earthquakes occur worldwide each year. It is difficult to refine this estimation to an exact number because many earthquakes go undetected, either because... More »

www.reference.com Science Earth Science Earthquakes

The United States Geological Survey estimates that there are around 50 earthquakes per day in the world that can be located. This amounts to around 20,000 earthquakes annually. More »

Approximately 1,500 earthquakes are recorded in Japan every year. The magnitude of each earthquake varies, and larger earthquakes between 4 and 7 on the Richter scale regularly occur. Records from the early 1990s indicat... More »

Approximately 1,500 earthquakes are recorded in Japan every year. The magnitude of each earthquake varies, and larger earthquakes between 4 and 7 on the Richter scale regularly occur. Records from the early 1990s indicat... More »

As of 2014, approximately 1,500 earthquakes strike Japan every year. According to the Royal Geographical Society, there are around 17 magnitude 7 — extremely strong — earthquakes that hit per year. More »

As of 2014, estimates suggest that over 500,000 earthquakes occur each year, and 100,000 of these are strong enough to be felt by humans. Since 1900, there has been a global average of 18 major earthquakes, and one giant... More »

Scientists estimate that over 10,000 earthquakes occur in California each year. Most of these go unnoticed since they are minor. For example, only several hundred have a magnitude greater than 3.0 and of these,only 15 to... More »