The seismicity of Iran. The Firuzabad (Nehavend) earthquake of 16 August 1958
Main Article Content
Abstract
The Firuzabad (Iran) earthquake of the 16th August 1958
had a smaller magnitude (il/ = 6.6) than did the last major earthquake in
the same area which occurred on the 13th December 1957, and had a 7.1
magnitude. The Firuzabad earthquake killed 132 and injured about 200
people in 170 villages. It affected an area of 1,100 square kilometres -within
which 2,500 housing units were destroyed or damaged beyond repair. The
earthquake had its macroseismic epicentre somewhat southeast of the 1957
earthquake and the shock was felt over an area of 80,000 square kilometres.
The damage pattern from the Firuzabad earthquake did not resemble
that of the 1957 shock, in that the Firuzabad earthquake affected a smaller
region but was the more intense of the two. In contrast, the 1957 earthquake
had a somewhat more moderate surface intensity over a much wider area.
The Firuzabad earthquake was associated with a fault-zone at least
20 kilometres long. This earthquake and the seismic events of the previous
year as well as the aftershocks of the 21st of September 1958, show quite
clearly a progressive expansion of seismic activity along a northwest-southwest
axis in the Zagros mountains.
had a smaller magnitude (il/ = 6.6) than did the last major earthquake in
the same area which occurred on the 13th December 1957, and had a 7.1
magnitude. The Firuzabad earthquake killed 132 and injured about 200
people in 170 villages. It affected an area of 1,100 square kilometres -within
which 2,500 housing units were destroyed or damaged beyond repair. The
earthquake had its macroseismic epicentre somewhat southeast of the 1957
earthquake and the shock was felt over an area of 80,000 square kilometres.
The damage pattern from the Firuzabad earthquake did not resemble
that of the 1957 shock, in that the Firuzabad earthquake affected a smaller
region but was the more intense of the two. In contrast, the 1957 earthquake
had a somewhat more moderate surface intensity over a much wider area.
The Firuzabad earthquake was associated with a fault-zone at least
20 kilometres long. This earthquake and the seismic events of the previous
year as well as the aftershocks of the 21st of September 1958, show quite
clearly a progressive expansion of seismic activity along a northwest-southwest
axis in the Zagros mountains.
Article Details
How to Cite
AMBRASEYS, N. and MOINFAB, A. (1974) “The seismicity of Iran. The Firuzabad (Nehavend) earthquake of 16 August 1958”, Annals of Geophysics, 27(1-2), pp. 1–21. doi: 10.4401/ag-4910.
Issue
Section
OLD
Open-Access License
No Permission Required
Istituto Nazionale di Geofisica e Vulcanologia applies the Creative Commons Attribution License (CCAL) to all works we publish.
Under the CCAL, authors retain ownership of the copyright for their article, but authors allow anyone to download, reuse, reprint, modify, distribute, so long as the original authors and source are cited. No permission is required from the authors or the publishers.
In most cases, appropriate attribution can be provided by simply citing the original article.
If the item you plan to reuse is not part of a published article (e.g., a featured issue image), then please indicate the originator of the work, and the volume, issue, and date of the journal in which the item appeared. For any reuse or redistribution of a work, you must also make clear the license terms under which the work was published.
This broad license was developed to facilitate open access to, and free use of, original works of all types. Applying this standard license to your own work will ensure your right to make your work freely and openly available. For queries about the license, please contact ann.geophys@ingv.it.