According to Japan’s Earthquake Research Promotion agency, there is a scary seventy percent chance of a 7.2-magnitude earthquake that will hit the country between today and 2040 in the southern Kanto area encircling Tokyo. Scarer still, a ninety percent chance in nearby Ibaraki.

Then, the chance of an 8.0-magnitude quake is eighty-seven percent in the Tokai region that’s nearly 100 miles southwest of Tokyo, seventy percent in Tonankai near Nagoya, and sixty percent for a very strong 8.4-magnitude in Nankai near Osaka in Western Japan.

“The short answer is: nobody knows when the next one will strike,” said Satoko Oki, a seismologist in Univeristy of Tokyo. “So we have to be prepared.”

Yesterday, a 5.6 magnitude shook the Pacific off Honshu, Japan – according to the U.S. Geological Survey. The epicenter of the tremor was near 51 miles southeast of Fukushima. The quake was centered some 28 miles deep. June 23, a magnitude 6.7 quake was felt. The Japan Meteorological Agency issued a tsunami warning then canceled it after an hour later.