TOKYO (Reuters) - Following are main developments after a massive earthquake struck northeast Japan on Friday and set off a tsunami.
* Radiation levels in Chiba prefecture neighbouring Tokyo are more than 10 times above normal levels, Kyodo News reports.
* Japan's nuclear safety agency says there were two holes of 8-metres square in a wall of the outer building of the quake-hit Fukushima Daiichi No.4 reactor after a blast in the morning.
- A spent nuclear fuel pool at reactor No. 4 in the Fukushima complex may be boiling and its water level falling, Kyodo news agency reported.
- World Health Organisation says Japanese authorities taking right measures to protect public health from radiation; has not received Japanese request for help.
- Death toll is expected to exceed 10,000, and rescue workers are continuing to search northeastern coastal cities for survivors.
- Radiation levels fall at quake-stricken Fukushima nuclear power plant on the northeastern coast, the Japanese government says, after an earlier spike in radiation.
- People within a 30 km radius of the facility urged to stay indoors.
- Radiation levels rise in Tokyo but it was not a problem, the city government says. "Minute levels" of radiation detected in the capital. according to Kyodo. Radiation levels in Saitama near Tokyo were 40 times normal level - not enough to cause human damage, but enough to stoke panic in the capital.
- Some residents leave the capital while others stock up on food and supplies.
- Japan tells U.N. nuclear watchdog a spent fuel storage pond was on fire at the Fukushima power plant and radioactivity was being released "directly" into the atmosphere, the Vienna-based agency said.
- Radiation levels in the city of Maebashi, 100 km (60 miles) north of the capital, Tokyo, were up to 10 times normal on Tuesday, Kyodo news agency said, quoting the city government.
* Japan's benchmark Nikkei average closes down 10.55 percent and the broader TOPIX index fell 9.47 percent, their largest percentage falls since October 2008. European shares followed, falling to their lowest in 14 weeks.
- Japan's central bank offers to inject 8 trillion yen (61 billion pounds) into the banking system.
(Tokyo bureau; Compiled by World Desk Asia)
