REFERENCE CODE: AkAMH

REPOSITORY NAME:
Anchorage Museum at Rasmuson Center
Bob and Evangeline Atwood Alaska Resource Center
625 C Street
Anchorage, AK 99501
Phone: 907-929-9235
Fax: 907-929-9233
Email: resourcecenter@anchoragemuseum.org

Guide prepared by: Sara Piasecki, Photo Archivist

TITLE: Sanborn Recording of 1964 Earthquake

COLLECTION NUMBER: B1997.023

OVERVIEW OF THE COLLECTION

Dates: March 27, 1964

Extent: 1 item

Language and Scripts: The collection is in English.

Name of creator(s): Eugene Hallam

Administrative/Biographical History:
Eugene Hallam was working as an inertial platform technician for Litton Industries, a guidance
and control systems company, in Woodland Hills, California in 1964. He was assisting testers
on March 27, 1964 when the machine began to record unusual activity. The testers suspected a
“power bump,” but Hallam convinced them to keep the equipment running, thus recording earth
movements from the Good Friday Earthquake.

From Hallam’s letter accompanying the chart:
“This Sanborn recorder paper was made from an LN12 inertial navigator... This unit was
running in nav open loop, such as an aircraft in flight, only on a test stand. The test stand is
mounted to a cement column about 12’ into the earth. The recording is from accelerometers
which sense movement, y accel. N-S, z accel E-W. An accel. pickoff moves, voltage change is
noted by computer, which responds with a voltage to correct to the torquers. This voltage is
also recorded on Sanborn chart... This is all done with or in line with stable platform with
gyroscopes controlling the platform.”

Scope and Content Description:
The collection consists of one Sanborn recording of the 1964 Alaska Earthquake, taken at
Woodland Hills, California.


Arrangement: Not applicable

CONDITIONS GOVERNING ACCESS AND USE

Restrictions on Access: The collection is open for research use.

Physical Access: Original item in good condition.

Technical Access: No special equipment is needed to access the materials.

Conditions Governing Reproduction and Use:
The Anchorage Museum is the owner of the materials and makes available reproductions for
research, publication, and other uses. Written permission must be obtained from the Anchorage
Museum before any reproduction use. The Anchorage Museum does not necessarily hold
copyright to all of the materials in the collections. In some cases, permission for use may
require seeking additional authorization from the copyright owners.

Preferred Citation:
Sanborn Recording of 1964 Earthquake, Anchorage Museum, B1997.023

ADMINISTRATIVE INFORMATION

Acquisition and Appraisal Information
Donated by Eugene Hallam in 1997.

RELATED MATERIALS
CIHS McCutcheon Collection, B1964.x.006
AHFAM Earthquake Photographs, B1969.011
Betty Bannon Collection, B1970.015
Zappa Earthquake Papers, B1972.060
Portage Earthquake Photographs, B1973.070
Patricia Mayo Earthquake Time Ticket, B1974.013
Kroninger Photograph Collection, B1976.118
Army Corps of Engineers 1964 Earthquake Photographs, B1977.118
Corps of Engineers 1964 Earthquake Photographs, B1979.038
Woodman Photograph Collection, B1980.027
McDermott Collection, B1987.083
Ron Aldrin Earthquake Slides, B1994.024
Sanborn Recording of 1964 Earthquake, B1997.023
Anchorage Chamber of Commerce Collection, B2002.002
Charles Koppel 1964 Earthquake Collection, B2002.008
Norman Campbell Photographs, B2005.041
Bronitsky Letter, B2006.021
4th and H St. Demolition Collection, B2007.002
Opal Myers 1964 Earthquake Collection, B2007.003

Christenson Slide collection, B2007.016
Bangkok Embassy Teletype Collection, B2009.044
Truth Coven Gray Earthquake Album, B2009.056
Kleihauer Slide Collection, B2010.004
Johnny Sartor Collection, B2010.020
Langford-Ose Photograph Collection, B2011.002
Kenneth C. Allen Earthquake Slides, B2012.027
Jean Kaufman Earthquake Photographs, B2012.032

SUBJECTS
Alaska Earthquake, Alaska, 1964
Earthquakes--Alaska—Anchorage


Guide written: December 17, 2012