There is no letup yet for the people in parts of central Japan hit by Monday's massive earthquake. Strong aftershocks continue to rock the region.

Local government authorities say 100 people are now confirmed dead in Ishikawa Prefecture.

Authorities are warning a wet weekend will only compound the danger. Rain fell Saturday morning in the quake-hit town of Anamizu in the prefecture. Wet weather is forecast through Sunday across the Hokuriku region and Niigata Prefecture, along the Sea of Japan coast.

Authorities say the ground has been loosened, and even a small amount of rain could trigger more landslides.

They warn that a cold front on Sunday afternoon could bring snowfall through Monday, especially in mountainous areas.

The magnitude 7.6 quake on New Year's Day reached a maximum of seven on the Japanese intensity scale. In addition to the 100 dead in Ishikawa Prefecture, more than 200 people are unaccounted for.

Several roads remain blocked, making it difficult to reach survivors. The central government is sending relief supplies to isolated coastal areas by sea. More than 170 people are still stranded.

The Ishikawa prefectural government has set up a base for transporting supplies sent from across the country.

Evacuation centers in the prefecture currently house about 31,000 people.

Local government officials say about 66,000 households are still without water.

Severe seismic activity on the Noto Peninsula and surrounding areas continues.

A strong earthquake with a magnitude of 5.4 struck Ishikawa Prefecture on Saturday morning. Authorities are urging residents to stay alert for more, possibly as large as the first.