A moderately strong earthquake shook parts of Japan near Tokyo Saturday, causing buildings to sway and slighting injuring at least 18 people.

The quake caused minor damage to at least one building in the Japanese capital, and Kyodo news agency reports that five people were injured at a shopping center in Saitama, north of Tokyo.

The U.S. National Earthquake Information Center measured the quake at 6.1 magnitude. Japanese officials say the jolt did not cause any tsunamis because it occurred inland.

Haneda and Narita airports temporarily closed their runways to check for damage. And some Japanese bullet-train services were halted as a precaution following the earthquake, which struck at 4:35 p.m. (0735 UTC) in Chiba prefecture.

Some information for this report provided by AP, AFP and Reuters.