1995 Dinar earthquake

Earthquake in southwest Turkey April 2025 April 2025 1995 Dinar earthquake Turkey 1995-10-01 15:57:12 72858 iscgem72858 1995 10 01 15:57:12 6.2 w y VIII 33 km us 38.063 30.134 inline,titlehttp://www.ngdc.noaa.gov/nndc/struts/results?eq_0=5419&t=101650&s=13&d=22,26,13,12&nd=display https://archive.today/20141206120345/http://www.ngdc.noaa.gov/nndc/struts/results?eq_0=5419&t=101650&s=13&d=22,26,13,12&nd=display dead 6 December 2014 Significant Earthquake National Geophysical Data Center 6 December 2014 Dinar (District), Afyonkarahisar, Turkey 90 dead, 200+ injured 4,500 or 5100 buildings damaged The 1995 Dinar earthquake occurred on 1 October in Dinar (District), Afyonkarahisar, Turkey. It had an w y magnitude of 6.2Öncel A.O. Koral H May 1988 The Dinar Earthquake (Mw = 6.2; October 1, 1995; Afyon-Turkey) and Earthquake Hazard of the Dinar-Çivril Fault Pure and Applied Geophysics 152 1 91–105 10.1007/s000240050143 1998PApGe.152...91O 128544555 with an epicenter close to the Dinar-Çivril fault. The earthquake occurred at a time of political instability in Turkey, with large strikes by public sector workers taking place just 11 days earlier. Response to a Damaging Earthquake in an Environment of Political Turmoil (Dinar, Turkey, October 1, 1995) http://www.colorado.edu/hazards/research/qr/qr83/qr83.html University of Colorado Boulder 1996 William A. Mitchell 6 December 2014 https://web.archive.org/web/20080627011402/http://www.colorado.edu/hazards/research/qr/qr83/qr83.html 2008-06-27 dead The disaster was preceded by a number of smaller earthquakes of up to 5.1 magnitude, the last of which had occurred on 26 September 1995. This resulted in a number of residents deciding to sleep outside their homes and possibly resulted in less deaths and injuries in the 1 October quake. When the quake occurred, 90 people were killed and more than 200 injured in the disaster. In total, 2,473 homes suffered major damage, 1,218 moderate damage and 2,076 slight damage.Lizarralde Gonzalo Johnson Cassidy Davidson Colin 2009 Rebuilding After Disasters: From Emergency to Sustainability https://books.google.com/books?id=6EB9AgAAQBAJ&pg=PA195 Routledge 195–196 978-1-134-02846-7 The Turkish government responded by constructing 5,000 new homes for those affected by the disaster. Tectonic setting and seismic sequence On the western flank of the Isparta Angle—where the Anatolian microplate pivots between the Hellenic and Cyprus Arcs—the NW–SE-trending Dinar Fault accommodates southwest‐directed extension and minor lateral slip. Geological mapping shows a 10 km surface rupture divided into three segments (the Dinar, central and Yapagli ruptures), with vertical displacements up to 25–30 cm and a small graben (sunken block) formed in places; where the fault bends, field measurements record centimetre-scale lateral offsets, indicating a minor strike-slip component. Historical sources reveal that the ancient town of Apemea (modern Dinar) was devastated by quakes in 400 BC, 88 BC and AD 53, and more recently by events in 1875 and 1925—though those ruptured neighbouring strands rather than the Dinar Fault itself. In the six days before the mainshock, a distinctive foreshock sequence began with a magnitude 4.0 tremor on 25 September, followed by a 4.5 event two days before the main rupture, and a total of 35 foreshocks greater than or equal to 3.0 recorded at ITU's Cine station (a permanent short‐period analogue seismograph operated by Istanbul Technical University's Kandilli Observatory and Earthquake Research Institute); activity quietened about 51 hours before the mainshock, matching recognised precursor patterns for moderate quakes. The mainshock, at 15:57 GMT on 1 October, comprised two sub-events on the same fault plane: the first at about 8 km depth (Mw 5.7) and the second—about four times more energetic—at roughly 12 km depth (Mw 6.1), giving a combined seismic moment of 2.0 × 1018 Nm (equivalent to Mw 6.2). Inversion of broad-band P-waves shows the rupture propagated north-westward between these depths. Strong-motion records in the epicentral area register peak horizontal accelerations of about 0.33 g—assigned intensity IX (MSK)—and geological amplification in the thick, water-saturated Quaternary alluvium east of the fault markedly increased damage. In total, 92 people were killed, 4,340 buildings were destroyed and a further 10,000 damaged, illustrating the hazard posed by soft-sediment basins. See also List of earthquakes in 1995 List of earthquakes in Turkey References Eyidoğan Haluk Barka Aykut The 1 October 1995 Dinar earthquake, SW Turkey Terra Nova 8 479–485 1996 5 10.1111/j.1365-3121.1996.tb00773.x 1996TeNov...8..479E Further reading Kürçer Akın Özdemir Ersin Olgun Şeyda Özalp Selim Çan Tolga Elmacı Hasan Active tectonic and paleoseismological characteristics of the Dinar Fault, SW Anatolia, Turkey Mediterranean Geoscience Reviews 3 2 2021 2661-863X 10.1007/s42990-021-00052-x 219–251 2021MGRv....3..219K 235220875 External links 72858 Category:Earthquakes in Turkey Category:1995 in Turkey Category:1995 earthquakes Category:October 1995 in Turkey Category:1995 disasters in Turkey