Abstract

This annual report covers activity for the year 1990. Basic program in geomagnetism, ionospherics and seismology continued at the Mundaring Geophysical Observatory during the period. The main instrument were an Eschenhagen normal-run magnetograph, an IPS type 4B ionosonde, a Worldwide Standard Seismograph, and a Seismic Research Observatory. Digital magnetic recording commenced full time from 3 July after a period of testing and calibration of an Elsec based Automatic Magnetic Observatory. Seismographs were operated at Ballidu, Coolgardie, Forrest, Kellerberrin, Kununurra, Marble Bar,Meekatharra, Morawa, Mundaring, Rocky Gully, Narrogin and Warburton. The operation of Manton Dam (NT) was taken over from the Headquarters Group on 1 August. The earthquake list (ML>2) shows details of 138 Western Australian earthquakes during the year. An isoseismal map was prepared for an earthquake that occurred near Meckering on 17 January 1990. A major project to determine varying responses of different sub-soil conditions to earthquake vibrations was undertaken during the year.
Google map showing geographic bounding box with values North bound East bound West bound South bound
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Product Type/Sub Type

nonGeographicDataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1992-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

14528 Product http://www.ga.gov.au/metadata-gateway/metadata/record/14528/

Keywords

GA Publication
Record
geophysics
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Lineage

Legacy product, lineage not available

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Source Description

Legacy product, source data not available.

Metadata File Identifier

a05f7892-ecde-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
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