What happened in the north-east Japan earthquake was the strongest in the history of the country, according to mmo country. Its magnitude is estimated as 8, 8. The number of victims of the earthquake in Japan reached 20 people and continues to grow, the exact number of wounded and injured is not yet known. According to the USGS, the earthquake magnitude was 8, 9. Its epicenter was 373 kilometers northeast of Tokyo, the focus lies at a depth of 24 kilometers. A series of strong aftershocks in the north-east of Japan and the ensuing tsunami caused damage to the country's Pacific coast.