Northeastern Section - 40th Annual Meeting (March 1416, 2005)
Paper No. 18-14
Presentation Time: 8:00 AM-12:00 PM

GEOGRAPHIC INFORMATION SYSTEM AS A RESEARCH AND TEACHING TOOL

MCCUSKER, Angus, Geology Department, GIS Laboratory, St. Lawrence Univ, Park Street, Canton, NY 13617, revettfa@potsdam.edu and REVETTA, Frank A., SUNY - College at Potsdam, Dept Geology, Potsdam, NY 13676

Geographic Information System (GIS) technology is used on the undergraduate level as a teaching and research tool. This technology was used to create a series of maps of earthquake epicenters and gravity measurements in New York State and Pennsylvania. The gravity data, collected by undergraduates at SUNY Potsdam and earthquake epicenter locations taken from New York State Geological Survey archives and the Potsdam Seismic Network were converted to an ARCGIS grid. The data layers of gravity data and earthquake epicenter locations are displayed with political state boundaries to study the relationship between gravity anomalies and earthquake epicenters. The project involved the compilation of 6500 gravity measurements and 370 earthquake epicenters in New York.

The compilation of both datasets to compile gravity-seismicity maps revealed correlations between gravity anomalies and earthquake epicenters not previously recognized. An east-west trending gravity high north of the Adirondacks in northern New York correlates with a belt of earthquakes of shallow depth (<18 Km). This is the most seismically active area in New York State. The large gravity anomalies and steep gradients indicate the anomalies have a shallow source in an outer brittle layer where the earthquake hypocenters are located. In western New York the earthquakes have a northwest trend which correlates with a northwest trending gravity high. In southeastern New York the epicenters lie along a northeast trending gravity gradient. The Scranton gravity high extending from Albany to Harrisburg has a deep seated origin with few earthquake epicenters.

Northeastern Section - 40th Annual Meeting (March 1416, 2005)
General Information for this Meeting
Session No. 18--Booth# 14
Applications of Remote Sensing, GIS, and Geodesy (Posters)
Prime Hotel and Conference Center: Whitney Room
8:00 AM-12:00 PM, Tuesday, March 15, 2005

Geological Society of America Abstracts with Programs, Vol. 37, No. 1, p. 58

© Copyright 2005 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.