The storm passed within five miles of the island of Alamagan on Tuesday, packing maximum sustained winds of 145 mph, according to the U.S. National Weather Service in Guam.

Only about 15 people live on Alamagan, and the Emergency Management Office said it had been in close contact with the settlement during the storm.

One woman had just given birth there a few days before the storm arrived. But no fatalities were reported on Alamagan or any other in the U.S. Commonwealth chain of islands.

Choi-Wan did bring down tree limbs and tossed debris on Saipan as it passed about 130 miles north of the Northern Mariana Islands’ capital.

About 180 people were taken into typhoon shelters on Saipan as a precaution.

The typhoon was predicted to skirt Iwo Jima late in the week before weakening and curving to the east of Japan’s main islands.

Choi-Wan means “colorful cloud” in Chinese, according to the Hong Kong Observatory.

Typhoon Choi-Wan Track

Satellite Loop Data: CIMSS