Japan Preliminary Earthquake Maps NIED

(click on image for interactive map)



Lat/Long: 44.4592 141.0677
UTC: 22/01/2013 13:29:22
JST: 22/01/2013 22:29:22
Depth: 258 km
Mag: 5.8 ML
Location: Hokkaido. Japan Region
Status: Preliminary
Source: NIED Hi-net

However ..............................

JMA only have 4.9
www.jma.go.jp...

Forgot the summary for that last one
mag

(click image for interactive map)
Largest event

Lat/Long: 37.7751 141.6449
UTC: 23/01/2013 21:31:07
JST: 24/01/2013 06:31:07
Depth: 43 km
Mag: 5.1 ML
Location: Near East Coast Of Honshu. Japan
Status: Preliminary

Summary
mag

Think the maps all look the same? think again

I made a little animation of the last 10 days maps

(click on image above for animation, opens in new tab/window)

I made a loop but it went too fast and you couldn't see when it started or finished, now it is just one run through, so let it run through then when it finishes if you want to see it again just click on the image here on this page for another run. (That is on Firefox)
If you have Internet Explorer you can just click "refresh" and it will play again
On Chrome click "reload page" and it will run through again.

(click image for interactive map)

Largest event
Lat/Long: 39.4831 143.5668
UTC: 24/01/2013 04:52:21
JST: 24/01/2013 13:52:21
Depth: 2 km
Mag: 3.9 ML
Location: Off East Coast Of Honshu. Japan
Status: Preliminary

Summary
mag

Something seems to have gone wrong with NIED
The following map is from data downloaded 12 hours ago and covers a period of 11 hours.
Just went in for an update now (!2 hours later) and the data is the same.

[color=lime](click image for interactive map, opens in new tab/window)

Largest event

Lat/Long: 41.5665 141.0922
UTC: 25/01/2013 08:27:43
JST: 25/01/2013 17:27:43
Depth: 115.4 km
Mag: [color=grey]3.5 ML
Location: Hokkaido. Japan Region
Status: Preliminary

Summary
mag

Well sorry about this folks, but I seemed to have missed a whole 24 hrs, from 25/01/2013 16:11:29 through to 26/01/2013 15:03:14.
I usually download the data anytime between 3pm and 9pm and have always caught the end of the last day.
Went out last night, after the problem with the data yesterday, and never checked again until 5:30pm NZST today.

[color=lime](click image for interactive map, opens in new tab/window)

Largest event;
Lat/Long: 36.5852 140.5685
UTC: 27/01/2013 18:41:49
JST: 28/01/2013 03:41:49
Depth: 75.1 km
Mag: 5.3 ML
Location: W of Hitachi, Near East Coast Of Honshu. Japan
Status: Preliminary

summary
mag

[color=lime](click image for interactive map, opens in new tab/window)
summary
mag

[color=lime](click image for interactive map, opens in new tab/window)
summary
mag

Yo, I'm back

That 6.9 at Tokachi, Hokkaido on Feb 2nd distracted me and I was busy saving the preliminary data of the aftershocks, when I thought "this is a waste of time, as in 3 days that data will be reviewed and made redundant".
Well it has been an entertaining exercise anyway, I learned how to put an image on ATS that links to a map, if nothing else.
You would have to be pretty keen to bother cross checking the preliminary with the reviewed data, I did a couple of times and there were quite a lot of changes.

So what to do now?
How about a summary of the reviewed data

here are a couple of graphs I put on my Japan Blog based on the data for January 2013
click for larger image

here is an interactive map of all the quakes above mag 1 recorded by NIED and reviewed for January 2013
summary
mag1= 3409, mag2= 1906, mag3= 577
mag4= 94, mag5= 23, mag6= 0, mag7= 0
total= 6009
total energy released= 33,198.28 TTNT

on that January 2013 data,
when I had the data gathered I (it comes in batches of 7 days as text by selection, and thats the max.) there were
11,248 entries
726 events 0 or below 0, ie negative magnitudes
4,187 events below 1.0
31 lines removed which had times, but no lat/long or depth, called "FAR FIELD"
then 295 more with lat/long and depth but no magnitude
leaving 10,922 lines with magnitudes above -1.0
so I guess we are still safe working under the same "Japan Preliminary Earthquake Maps NIED" title as before

32 events were converted to Mw.

I gave this page as a reference of my work to get permission to get the data off NIED, so how about some comments!
Otherwise they will think no one really gives a toss and cancel my registration.
Its due for a new password end of March

deep one offshore Western Honshu 4.8ML on this map

[color=lime](click image for interactive map, opens in new tab/window)
19/02/13 15:02:02 to 21/02/13 01:17:35UTC
summary
mag

[color=lime](click image for interactive map, opens in new tab/window)
summary
mag

[color=lime](click image for interactive map, opens in new tab/window)
summary
mag

[color=lime](click image for interactive map, opens in new tab/window)
summary
mag

interactive map of NIED prelimanary data 21-22 March 2013 JST

Update since last one, additional;
mag

Lat/Long: 34.4243 134.8298
UTC: 12/04/2013 20:33:18
JST: 13/04/2013 05:33:18
Main shock
Depth: 15km
Mag: 6.3 ML, 5.7Mw (Aqua)
Location: Awaji Island, Osaka Bay, Near S. Coast Of Western Honshu, Japan
Status: Preliminary
Energy Released: 42,501.898 tonnes of TNT

interactive aftershocks map

[color=lime](click image for interactive map, opens in new tab/window)
status at 5:11 hours after the main shock
mag6= 1
mag5= 0
mag4= 1
mag3= 5
mag2= 26
mag1= 76
total= 109
TTNT= 42,526.867

interactive aftershocks map at 27hrs (click link)
summary
mag1= 154
mag2= 35
mag3= 10
mag4= 1
mag5= 0
mag6= 1
mag7= 0
total= 201
TTNT= 42,535.065

I missed half a day on Awaji aftershocks, so back to the whole of Japan, Mag 1+ only

[color=lime](click image for interactive map, opens in new tab/window)
summary
mag1= 135
mag2= 70
mag3= 7
mag4= 1
mag5= 0
mag6= 0
mag7= 0
total= 213
TTNT= 37.74549354