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Landslides from the February 4, 1976, Guatemala earthquake Landslides from the February 4, 1976, Guatemala earthquake

The M (Richter magnitude) = 7.5 Guatemala earthquake of February 4, 1976, generated more than 10,000 landslides throughout an area of approximately 16,000 km2. These landslides caused hundreds of fatalities as well as extensive property damage. Landslides disrupted both highways and the railroad system and thus severely hindered early rescue efforts. In Guatemala City, extensive property...
Authors
Edwin L. Harp, Raymond C. Wilson, Gerald F. Wieczorek

Earthquake-triggered landslides form lakes in New Zealand Earthquake-triggered landslides form lakes in New Zealand

Eleven small lakes were formed by landslides caused by the 1929 Buller earthquake in New Zealand; four others were formed by other historic earthquakes in this country. At least nine other New Zealand lakes are dammed by landslides and were probably formed by prehistoric earthquakes. Earthquake-dammed lakes could provide an estimate of paleoseimicity for the past few hundred or thousand...

Small landslide types and controls in glacial deposits: Lower Skagit river drainage, northern cascade range, Washington Small landslide types and controls in glacial deposits: Lower Skagit river drainage, northern cascade range, Washington

Observations of 167 small, shallow landslides spanning a 22-year period on extensively logged slopes of Quaternary terraces in the lower Skagit and Baker Valleys, Washington, shows that there is a relationship between the common slope failures in this area and the slope angle, stratigraphy, and logging practices. Landslide frequency increases upvalley, as do mean annual precipitation and...
Authors
P.L. Heller

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, November 1980 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, November 1980

The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, E.A. Sauter, S.P. Tilton
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