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Rumblings from the direction of extinct volcanoes in Al-Ais, which was hit by a series of tremors over the last couple of weeks, sent villagers in the area into a state of near panic in the early hours of Thursday.
“Most of the local people spent the night in a state of extreme anxiety when a thunder-like rumble was heard,” one worried resident told Arab News Thursday.
Magnitude mb 4.5
Region WESTERN SAUDI ARABIA
Date time 2009-05-17 at 19:50:06.3 UTC
Location 25.27 N ; 37.56 E
Depth 2 km
Distances 140 km NW Yanbu (pop 200,161 ; local time 22:50 2009-05-17)
40 km NE Umm lajj (pop 33,874 ; local time 22:50 2009-05-17)
More seismicity information (Moment tensors, phases pickings, etc.)
KHOBAR, Saudi Arabia, May 23 (Reuters) - Recent seismic activity in a volcanic region in Saudi Arabia does not present nearby oil refineries with any danger, officials said on Saturday.
Authorities have evacuated thousands of people from the northwestern al-Ais region after a series of tremors hit the volcanic area over the past few weeks, culminating with a 5.4 Richter scale tremor on Tuesday, few hours after a 4.8 tremor.