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Indonesia: 7.1 Magnitude Undersea Earthquake Damages Hospital; Tsunami Alert Lifted 2 Hours After Quake

Footage released by the National Disaster Mitigation Agency showed streams of people in a village on Mentawai Island fled to the highlands by foot and motorcycles under the rain in darkness, while some patients at the village's hospital were evacuated to its yard as cracks showed in the facility's floor.

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A strong undersea earthquake of 7.1 magnitude jolted Indonesia on Monday sending streams of people fleeing to higher ground in eastern Indonesia before the tsunami danger passed.

According to the US Geologocal Survey, the earthquake was centered 170.4 kilometers (105.6 miles) southeast of Teluk Dalam, a coastal town in the South Nias Regency, North Sumatra province, at a depth of 15 kilometers (9.3 miles) under the sea.

The earthquake was followed by at least 5 aftershocks measuring magnitude between 5.8 and 4.6, it said.

Footage released by the National Disaster Mitigation Agency showed streams of people in a village on Mentawai Island fled to the highlands by foot and motorcycles under the rain in darkness, while some patients at the village's hospital were evacuated to its yard as cracks showed in the facility's floor.

The shocks were felt in districts and cities of West Sumatra and North Sumatra provinces, and some places ordered evacuations to higher ground.

Residents in parts of West Sumatra province, including the provincial capital of Padang, felt the earthquake strongly for about 30 seconds, agency spokesperson Abdul Muhari said.

“Many residents in several villages on Mentawai island chose to stay displaced in higher ground although the tsunami alert was ended due to fears of aftershocks,” he said, adding that authorities were still collecting information about the damage.

Tsunami alert lifted

After an initial tsunami alert, Indonesia's Meteorology, Climatology and Geophysical Agency lifted it just before dawn, about two hours after the quake. The agency initially put a preliminary magnitude at 7.3, but later revised it to 6.9. Variations in early measurements are common.

The agency's head of the Earthquake and Tsunami Center, Daryono, who goes by a single name, said that based on sea-level observations, minor tsunamis of 11 centimeters (4.3 inches) were detected in Tanah Bala coastal area of South Nias regency.

Indonesia, a vast archipelago of 270 million people, is frequently struck by earthquakes, volcanic eruptions and tsunamis.

In November, a magnitude 5.6 killed at least 340 people and damaged more than 62,600 homes in part of West Java.

 Indonesia lifts tsunami alert after powerful undersea quake

Indonesia lifted a tsunami alert Tuesday following a magnitude 7.1 undersea earthquake that hit off Mentawai Island, triggering panic in a region prone to fatal quakes but apparently causing no major damage or casualties.

(With AP inputs)

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