The East of Miyaneh Earthquake of September 26, 2005 (ML= 4.9)

An earthquake with ML=4.9 (on the Richter scale) and Mb=5.1 shook an area 11 km east of Miyaneh at 10:27 p.m. local time on September 26, 2005. The epicenter of this earthquake, according to the seismograms recorded by the 12 national broad band seismic stations of IIEES is at 37.35 N and 47.80 E at a depth of 16 km from the sea level. It should be noted that during the past few months the region between Bostan Abad, Sarab and Miyaneh has had noticeable seismic activity. Several earthquakes have previously been recorded by the Iranian National Broad Band Seismic Network (INSN) of the institute and may be seen on the IIEES website. The fault causing this earthquake is probably at a Northeast-Southwest trend, as a system of several faults and parallel ruptures reaching from northeast of Miyaneh to southwest of Miyaneh near Kangavar (figure 1). Seismograms recorded at INSN stations are shown in figure (2).

 

Figure (1): Epicenter of 26/09/2005 earthquake on tectonic map of Iran
 and cities and Major faults of the region.

Table (1): Information of Earthquake at a range of 150 km

 from Miyaneh since 1st Jan 2005.

Figure (2): Seismograms of 26/09/2005 ML=4.9 and mb=5.1,

Mianeh Earthquake recorded at INSN station of IIEES.