Massive deep earthquake sends a vibration all over Japan

Earthquake overview : A massive earthquake occurred in the hot solid mantle of the earth.  Due to the focal depth of 370 km this earthquake has been felt all over Japan. The earthquake was however harmless due to the weakened impact.
"I have Felt it" Reports --> see below + Let us know "how you have felt this earthquake"
To read the full story as it happened, we advise our readers to start at the lower part of the page (earthquake data).

Keep this page open or return regularly as we will be back with more details when they become available

Intensity map courtesy JMA Japan

Update : The hypocenter of this earthquake was far too deep to generate a tsunami.

Update :  Values of other seismological agencies
EMSC : 7.0 at 365 km
GEOFON : 6.7 at 361 km
CEN : 7.0 at 360 km

The earthquake must have been felt by millions of people.

A little bit to our surprise the shaking was strongest in the greater Tokyo area (see yellow bullets on the JMA map) , although other areas in Japan felt it as a weak shaking and were located closer to the epicenter. Part of the reason will certainly be the propagation of the wave.

The earthquake was calculated to be felt as a weak shaking based on the USGS Data, however the Japanese seismological agency JMA reported a V MMI (moderate shaking). These values are approx.  4 JMA (Japanese use another seismic intensity scale)

Very strong but very deep earthquake with an hypocenter (focal depth) in the hot solid mantle of the earth. Based on calculations of the seismological centers, only a weak shaking will have been felt in a very wide area. The epicenter was located in between a lot of submarine volcanoes .


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"I Have Felt It" reports as received by Earthquake-Report.com
Kamakura : Light shaking indicated
Zama : light shaking indicated
Tokyo : m4 earthquake in japan near tokyo
Tokyo : Was getting ready to go to the shrine for Hatsumode at about 2:30 PM when the door started rattling. The rest of the house soon followed. Shaking continued for about 30 seconds, but many small ornaments and the power lines outside continued swinging for a good deal longer.
Tokyo : light shaking indicated
+ a lot of other indications from all over Japan
Tokyo : Jan. 1, 2012 around 2:30pm - Earthquake: slow, continue and steady start and not stopping. Similar feeling to March 11, 2011.(I was in Tokyo) Then strong shake and felt like getting stronger. Then one strong "hit" and wondering
if "here we go again." Then slow down and stop.
Saku-Shi, Nagano-Ken : weak shaking indicated
Mt. Fuji : As we were driving around the Mt. Fuji area, we did not even know that there had been an earthquake until friends started posting about it on Facebook.


Most important Earthquake Data:
Magnitude : 7.0 (JMA) 6.8 (USGS)
UTC Time : Sunday, January 01, 2012 at 05:27:54 UTC
Local time at epicenter :  Sunday, January 01, 2012 at 02:27:54 PM at epicenter
Depth (Hypocenter) : 370 km (JMA) 349 km (USGS)
Geo-location(s) :
242 km (150 miles) SW of Hachijo-jima, Izu Islands, Japan
365 km (226 miles) S of Hamamatsu, Honshu, Japan
393 km (244 miles) S of Shizuoka, Honshu, Japan
495 km (307 miles) SSW of TOKYO, Japan

Links to important maps
USGS Did You Feel It Map
Google satellite map showing the epicenter and the surrounding area
Historic earthquakes map
Seismic hazard map
Shaking map
Focal mechanism report
Human impact map
GDACS earthquake report
NOAA tsunami report

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I did feel it – Ik heb het gevoeld – Το έκανα αισθάνεται Yo lo he sentido – 我的确感到了 – 私はそれを感じていました- Ich habe es gefühlt – Bunu hissediyorum yaptı – لم أشعر أنه