On average, there are roughly 20,000 - 30,000 recorded earthquakes every year.
The USGS estimates that several million earthquakes occur in the world each year but many go undetected because they hit remote areas or have very small magnitudes.
japan
The lithosphere is where earthquakes occur.
3
Yes, many earthquakes occur under the ocean which is generally in water.
Earthquakes occur at all plate boundaries.
Earthquakes and volcanoes both occur in land and ocean. =)
Most earthquakes do occur on fault lines.
Yes that is generally where most earthquakes occur
earthquakes usually occur at tectonic plate boundaries
Most earthquakes occur where the edges of Earth's plates are.
seismic unit
alot of earthquakes