"We can do with all the help we can get," Courtney Stinnett at the Truk Stop Hotel dive shop on the main island of Weno in Chuuk state told AFP.
A state of emergency has been declared in Chuuk, the largest region in the Federated States of Micronesia (FSM) where five people were killed and houses and crops destroyed by Maysak.
The super typhoon took three days to cross the central Pacific archipelago before heading out to sea and towards the Philippines, but relief workers said it could be a year before some land was restored enough to plant crops again.
"There are fallen trees and you can't get through many back roads," she said.
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"There are two live aboards (vessels) which have significant damage after being swept on to the reef. The crew had to jump off and swim to land. Quite a few were injured but all survived."
The Pacific Maritime Association (PMA) sent an aircraft to survey the damage on Ulithi atoll which was hit hard when the eye of the storm passed over on Tuesday night with sustained winds of 260 kilometres per hour (160 mph).
"Because Ulithi is just a little above sea level, in some areas the sea rose, destroying crops and the soil. It will take time to desalinate the soil -- approximately a year until the crops can be re-planted," she said.
In Chuuk, Stinnett said they were reliant on ships to bring in relief supplies but they may first be diverted to the many small islands where residents lost their boats and had no way of going for help.