Story highlights

NEW: People are going to shelters because they fear aftershocks

NEW: 25,000 Japanese troops are sent to help in rescue efforts

At least 32 are dead; bad weather hampers rescue efforts

Tokyo, Japan CNN  — 

Heavy rains were expected through Sunday after Japan’s Kyushu region was struck by twin earthquakes, hampering the search for survivors and forcing nervous residents into crowded evacuation centers.

At least 32 people have died in the latest Kyushu earthquake, according to Kumamoto Prefecture’s disaster management office. The magnitude-7.0 quake hit early Saturday.

Prime Minister Shinzo Abe described the search for survivors amid piles of rubble as a “race against the clock,” noting that bad weather had conspired with the devastating quake, its aftershocks and the threat of landslides to make a dire situation worse.

In a Sunday morning press briefing, Abe said he received an offer of help from the U.S. military but it was not urgently needed yet. Japan has deployed 25,000 self-defense forces to the rescue effort, Suga said.

At least 23 people are buried inside buildings, Chief Cabinet Secretary Yoshihide Suga said.

“We’re racing against the clock,” Abe said. “(We) will provide more personnel if necessary.”

Japan quakes by the numbers

Deaths linked to Thursday’s quake: 9Deaths linked to Saturday’s: 32Total deaths: 41Total injured: 968Evacuated: More than 91,700Homes destroyed: 90Homes damaged: 775Timeline:

  • Thursday at 9:26 p.m.: 6.2-quake about 4.3 miles from the city of Ueki
  • Friday at 12:03 a.m.: 6.0-quake hits about 3.7 miles east of Uto.
  • Saturday at 1:25 a.m.: 7.0-quake hits about 0.6 miles from Kumamoto-shi.
  • Sources: Kumamoto Prefecture’s disaster management office; USGS.

    Residents were already on edge after a 6.2. quake rattled the area two days earlier, killing nine people. The combined death toll has reached 41. The two earthquakes left 968 people injured, according to the disaster management office.

    “This is the worst thing that could happen to us,” said Shigeru Morita, an official in the town of Mashiki, Kumamoto Prefecture.

    The latest and most powerful earthquake struck near the city of Kumamoto, toppling buildings and bridges, shredding sections of landmarks into piles of debris, and sending frightened residents fleeing from their homes and into the night.

    Thursday’s earthquake hit near Ueki city, just 15 kilometers (9.3 miles) away.

    “The first earthquake was very big,” said Osamu Yoshizumi, the senior chief of international affairs in Kumamoto. “We thought it was the big one.”

    That initial earthquake was a “foreshock” to the latest one, according to USGS.

    A bigger tremor would come overnight Friday.

    “When the second earthquake came everything shook and I thought I might die,” said Taiki Hishida, 38, who evacuated with his wife and two young children to a crowded shelter.

    Samuel Borer, a U.S. citizen living in Kumamoto, said the latest quake struck at about 1:30 in the morning.

    “It was just pitch black in the middle of the night and everything just started to go wild,” he said.

    Noel Vincent felt both earthquakes.

    “This extremely intense shaking began,” he said. “And whereas the first earthquake was more of an up-and-down type of shaking, this was a side-to-side shaking … it was very intense and I feared for my life.”

    Television images and photos showed empty shelves at supermarkets and stores, leaving many evacuees to line up for food and water at shelters.

    “There wasn’t actually enough food for everyone, which was the only problem,” said Borer, speaking at an elementary school being used as a shelter. “Most of the food went to the elderly and children first.”

    Kumamoto Prefecture continues to experience aftershocks, with about 165 so far.

    “I feel every aftershock,” said Yoshizumi, who was working from the city hall building in Kumamoto. “It’s swaying here every hour.”

    Rescue efforts

    CNN International’s Matt Rivers, reporting from an evacuation shelter, said the aftershocks are creating great anxiety among rescuers and residents.

    “You’re seeing people assigned here from one of two sorts of tracks,” he said. “On the one hand, people who had their homes destroyed so they have nowhere to go. (But) the reality is that most people inside this evacuation shelter here are afraid to go home. They’re not sure that maybe there might be another aftershock.”

    The aftershocks also could hamper rescue efforts as emergency workers attempt to pull out people trapped in the rubble. TV Asahi showed crews crawling over a collapsed roof in an attempt to find an elderly couple. An 80-year-old man was rescued from the rubble, according to CNN affiliate TV Asahi.

    The tremors appear to have caused extensive damage, overturning cars, splitting roads and triggering a landslide as shown by TV Asahi footage. Television images showed flattened houses, shards of broken glass and debris piled onto the streets and people huddled outside. Nearly 92,000 people have evacuated, according to the prefecture’s disaster management office.

    The Kumamoto government has opened more than 100 evacuation centers for residents and has started handing out food, water and blankets, Yoshizumi said.

    Kumamoto Castle, a famous site in Japan built in the early 17th century, is badly damaged, he said.

    Vincent told CNN he had an annual pass and would visit the castle each month. He described extensive damage to a retaining wall and a turret at the castle.

    “I was just devastated to see the damage,” he said. “It’s just all surreal. I can’t really quite process it. … It’s such a shame to see … a treasure like that, a national treasure like that fall to pieces.”

    Hundreds treated

    The Red Cross treated more than 1,000 people in the Kumamoto area Friday, but the organization said it anticipates the number will increase following Saturday’s earthquake.

    The most serious injuries were to people cut by glass or in collapsed houses, said Nobuaki Sato, director of the International Relief Division at the Japanese Red Cross.

    “We don’t know what is happening in the whole disaster area because it is a remote mountain area and some big bridges were down and many landslides were found, so we were working around the clock and are making assessments,” Sato said. “But so far the road access is not easy to the remote areas.”

    Japan’s Fire and Disaster Management Agency said 7,262 people have sought shelter at 375 centers since Friday in Kumamoto Prefecture. Suga said 20,000 self-defense forces are being deployed to the region for rescue efforts.

    Abe called off a planned visit to Kumamoto on Saturday. His office told CNN the prime minister would instead spearhead efforts from Tokyo. The country’s air force planned to send six planes and nine ships to Kumamoto to deliver food, blankets and all emergency necessities.

    Japan received offers of support from other nations.

    Japan’s “Ring of Fire”

    The shallow depth of the latest quake and the dense population of where it struck could prove to be devastating, according to experts.

    “No question, this is a large and very important earthquake,” said Doug Given, a geophysicist with the U.S. Geological Survey, “and it will do a lot of damage.”

    The U.S. Geological Survey reported that the latest quake struck just west-southwest of Kumamoto-shi and about 8 miles south-southeast of Ueki, the epicenter of the late Thursday tremor that left nine dead.

    Victor Sardina, a geophysicist in Honolulu, Hawaii, told CNN that the latest quake was about 30 times more powerful than Thursday’s deadly tremor. He predicted “severe, serious implications in terms of damage and human losses.”

    Japanese media reported a small scale eruption of Mt. Aso around 8:30 a.m. local time Saturday. It was unclear whether the eruption occurred in relation to the earthquake, according to the Japan’s meteorological agency.

    Journalist Mike Firn in Tokyo told CNN he felt the trembles in a building some 900 kilometers, or more than 550 miles away from the epicenter.

    CNN’s Junko Ogura and Yoko Wakatsuki reported from Tokyo, CNN’s Madison Park reported from Hong Kong and CNN’s Ray Sanchez reported from New York. CNN’s Kevin Wang and Elaine Ly contributed to this report.