Park Record Media Center

A traffic board indicates an expressway between Sakamachi and Shinanomachi in Nagano Prefecture, central Japan, is closed due to an earthquake on the Joshin-etsu Expressway at Hanazono Interchange in Fukaya, Saitama Prefecture, northwest of Tokyo, Saturday, Nov. 22, 2014. The magnitude-6.8 earthquake struck a mountainous area of central Japan on Saturday night, causing at least one building to collapse and injuring several people, according to Japanese media reports. No tsunami warning was issued. (AP Photo/Kyodo News, Yohei Nishimura) ( Japan Earthquake )

A local community center stands damaged after a strong earthquake in Hakuba, Nagano prefecture, central Japan, Sunday, Nov. 23, 2014. More than 20 people have been hurt after the magnitude-6.8 earthquake shook on Saturday night the mountainous area that hosted the 1998 winter Olympics. (AP Photo/Kyodo News) ( Japan Earthquake )

A fire department vehicle drives past a warehouse collapsed by a strong earthquake in Hakuba, Nagano Prefecture, central Japan, Saturday, Nov. 22, 2014. The magnitude-6.8 earthquake struck the mountainous area of central Japan Saturday night, causing at least one building to collapse and injuring several people, according to Japanese media reports. No tsunami warning was issued. (AP Photo/Shinano Mainichi Shimbun via Kyodo News) ( Japan Earthquake )

Shampoos, detergents, Japanese rice wine packs and other items are scattered on the floor at a convenience store after a strong earthquake in Nagano, Nagano Prefecture, central Japan, Saturday, Nov. 22, 2014. The magnitude-6.8 earthquake struck near Nagano in the mountainous area Saturday night. No tsunami warning was issued. (AP Photo/Shinano Mainichi Shimbun via Kyodo News) ( Japan Earthquake )

Residents look at houses collapsed after a strong earthquake in Hakuba, Nagano prefecture, central Japan, Sunday, Nov. 23, 2014. More than 20 people have been hurt after the magnitude-6.8 earthquake shook on Saturday night the mountainous area that hosted the 1998 winter Olympics. (AP Photo/Kyodo News) ( Japan Earthquake )

A Nagano Police vehicle passes by damaged houses Sunday, Nov. 23, 2014 after a strong earthquake hit Hakuba, Nagano prefecture, central Japan, Saturday night. More than 20 people have been hurt after the magnitude-6.8 earthquake shook the mountainous area that hosted the 1998 winter Olympics. (AP Photo/Kyodo News) JAPAN OUT, CREDIT MANDATORY ( Japan Earthquake )

A taxi stops by a crack on the road that leads to Hakuba from Nagano, Nagano Prefecture, after a strong earthquake hit central Japan, Saturday, Nov. 22, 2014. The magnitude-6.8 earthquake struck in the mountainous area of central Japan Saturday night. No tsunami warning was issued. (AP Photo/Kyodo News) ( Japan Earthquake )

Japan Meteorological Agency official Yohei Hasegawa speaks about a strong earthquake that struck a mountainous area of central Japan Saturday night, at the agency in Tokyo Sunday, Nov. 23, 2014. The magnitude-6.8 quake hit near Nagano city at 10:08 p.m. (1308 GMT) at a depth of 10 kilometers (6 miles). No tsunami warning was issued. (AP Photo/Kyodo News) ( Japan Earthqauke )

A house is collapsed after a strong earthquake hit in Hakuba, Nagano Prefecture, central Japan, Saturday, Nov. 22, 2014. The magnitude-6.8 earthquake struck the mountainous area of central Japan Saturday night, causing at least one building to collapse and injuring several people, according to Japanese media reports. No tsunami warning was issued. (AP Photo/Kyodo News) ( Japan Earthquake )

A rescuer with a sniffer dog examines a damaged house Sunday, Nov. 23, 2014 after a strong earthquake hit Hakuba, Nagano prefecture, central Japan, Saturday night. More than 20 people have been hurt after the magnitude-6.8 earthquake shook the mountainous area that hosted the 1998 winter Olympics. (AP Photo/Kyodo News) ( Japan Earthquake )

Japan Meteorological Agency official Yohei Hasegawa speaks about a strong earthquake that struck a mountainous area of central Japan Saturday night, at the agency in Tokyo Sunday, Nov. 23, 2014. The magnitude-6.8 quake hit near Nagano city at 10:08 p.m. (1308 GMT) at a depth of 10 kilometers (6 miles). No tsunami warning was issued. (AP Photo/Kyodo News) ( Japan Earthquake )