Note: These three datasets were obtained from Geosciences
Department of the University of Houston.
Abstract:
This point data set contains all earthquake data, worldwide, from the (PDE)
Preliminary Determinations of Epicenters, Monthly Listing. This list is
the most complete computation of hypocenters and magnitudes done by the
United States Geological Survey (USGS) National Earthquake Information
Center (NEIC).
Purpose:
The digital data sets are used to create electronic and hard copy maps
that depict various aspects of world seismicity. The data can be used to
conduct geographic analysis on national and large regional scales
Dataset information:
Abstract:
These files contain basic geographic and geologic information for
volcanoes thought to have been active in the last 10,000 years (Holocene).
The data include a unique volcano number, volcano name, location, latitude
and longitude, summit elevation, volcano type, status, and the time range
of the last recorded eruption.
Purpose:
The data can be used to locate active volcanoes and read one-line
summaries of them. The accuracy of the record varies enormously from one
region to another (and one century to another), and the sea-floor
volcanism that dominates our planetary magma budget is scarcely
represented in this data set.
Dataset information: