This form makes available seismic bulletin data from the National Earthquake Database (NEDB) since 1985.
As some parameters like focal
depth are poorly known for most earthquakes, they are often specified only as
nominal or default values. Before using the data, please
contact us for additional
information on the limitations of the dataset. Information for recent
earthquakes (within the last year) should be
considered preliminary, possibly incomplete, and subject to change. Lastly,
the information for mining-related-event and
blasts may not be complete.