Publications
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Maps showing landslide features and related ground deformation in the Woodlawn area of the Manoa Valley, City and County of Honolulu, Hawaii Maps showing landslide features and related ground deformation in the Woodlawn area of the Manoa Valley, City and County of Honolulu, Hawaii
No abstract available.
Authors
Rex L. Baum, Robert W. Fleming, Stephen D. Ellen
Earthquakes & Volcanoes, Volume 21, Number 1, 1989: Featuring the U.S. Geological Survey's National Earthquake Information Center in Golden, Colorado, USA Earthquakes & Volcanoes, Volume 21, Number 1, 1989: Featuring the U.S. Geological Survey's National Earthquake Information Center in Golden, Colorado, USA
Earthquakes and Volcanoes is published bimonthly by the U.S. Geological Survey to provide current information on earthquakes and seismology, volcanoes, and related natural hazards of interest to both generalized and specialized readers. The Secretary of the Interior has determined that the publication of this periodical is necessary in the transaction of the public business required by...
Authors
Henry Spall, Diane C. Schnabel
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, Carol Ann Varner
Transformation of dilative and contractive landslide debris into debris flows-An example from Marin County, California Transformation of dilative and contractive landslide debris into debris flows-An example from Marin County, California
The severe rainstorm of January 3, 4 and 5, 1982, in the San Francisco Bay area, California, produced numerous landslides, many of which transformed into damaging debris flows. The process of transformation was studied in detail at one site where only part of a landslide mobilized into several episodes of debris flow. The focus of our investigation was to learn whether the landslide...
Authors
R. W. Fleming, S. D. Ellen, M.A. Algus
Landslides and debris flows in Ephraim Canyon, central Utah Landslides and debris flows in Ephraim Canyon, central Utah
No abstract available.
Authors
Rex L. Baum, Robert W. Fleming
Preliminary geomagnetic data, College Observatory, Fairbanks, August 1989 Preliminary geomagnetic data, College Observatory, Fairbanks, August 1989
No abstract available.
Authors
J.B. Townshend, R. V. O’Connell, C.A. Varner
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, Carol Ann Varner
A direct method for calculating instrument noise levels in side-by-side seismometer evaluations A direct method for calculating instrument noise levels in side-by-side seismometer evaluations
The subject of determining the inherent system noise levels present in modem broadband closed loop seismic sensors has been an evolving topic ever since closed loop systems became available. Closed loop systems are unique in that the system noise can not be determined via a blocked mass test as in older conventional open loop seismic sensors. Instead, most investigators have resorted to...
Authors
L. Gary Holcomb
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, Carol Ann Varner
Landslide deposits in the Duchesne 30' x 60' Quadrangle, Utah Landslide deposits in the Duchesne 30' x 60' Quadrangle, Utah
No abstract available.
Authors
R. B. Colton, Bruce Bryant
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, Carol Ann Varner
An introduction to quiet daily geomagnetic fields An introduction to quiet daily geomagnetic fields
On days that are quiet with respect to solar-terrestrial activity phenomena, the geomagnetic field has variations, tens of gamma in size, with major spectral components at about 24, 12, 8, and 6 hr in period. These quiet daily field variations are primarily due to the dynamo currents flowing in the E region of the earth's ionosphere, are driven by the global thermotidal wind systems, and...
Authors
W.H. Campbell