Earthquake Magnitude Scale Magnitude Earthquake Effects Estimated Number Each Year 2.5 or less Usually not felt, but can be recorded by seismograph. Millions 2.5 to 5.4 Often felt, but only causes ...

A moderately strong, 5.7-magnitude earthquake struck in the Philippines on Thursday, according to the United States ...

I Felt by very few people; barely noticeable. II Felt by a few people, especially on upper floors. III Noticeable indoors, especially on upper floors, but may not be recognized as an earthquake. IV ...

A strong, 6.8-magnitude earthquake struck off the coast of southern Japan on Monday, according to the United States ...