MONITORING AND FORECAST

JAPAN,  Ìs7.8

 

Seismic situation in Tokyo area  /10 July 2008/.

  

FORECAST, Ìs7.8

Situation in the system.

At present, on July 10, 2008, seismic situation in the system did not change and it is developed on the scenario unfavorable for Tokyo. Communication dated June 15, 2008 remains valid. Strong earthquake from Ms=8.3 and by the depth of center to 25 km is expected in Tokyo region in the zone C (see Fig.1) from July 25 to August 25, 2008. Seismic situation is developed on the scenario of historical earthquake to 1703 Genroku.  

On Fig.2 and in Table 1 it is shown an increase in the dynamic parameters of the preparation of strong earthquake from M> 7.8 in the system in July - August with the condition of the seismic calm*. Purely mathematically danger is felt on August 9, 2008.

*Seismic calm means that within the framework of the system during this period will not occur earthquake from M>6.0.

P.S. If in July in the system occurs, at least, one earthquake from M=7.0, then Tokyo will rescue and danger will move from the zones A, B, C to the north, into the zone of the instability of Fukushima Ken Oki earthquake, 1938.11.05. 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                               

                                                                                

 

 

 

 

                           

 

 

 

 

 

 

 

Fig.1. Sagami Trough. The strong earthquake of M8.3 is expected in the zone C from July 25 to August 25, 2008. Supposedly, the source of the expected earthquake can coincide with the source of 1703 Genroku.  

Fig.2. Dynamics of an increase in the probability of strong earthquake in SS Japan in July - August (dotted line) 2008. P the probability of strong earthquake (red region), Pk probability on the cumulative energy (vegetable), Pw probability on the entropy (dark-blue). P - with the line indicates the conditional probability (gray and blue).

Table 1. Increase in the dynamic parameters of the preparation of strong earthquake (Ms≥7.8) in SS Japan in July - August 2008, with relative seismic calm in the system (with a constant parameter Ê).

    

 

DATA

PREPARATION

ENERGY

PROBABILITY

PLACE

 

CUMULAT. ENERGY. CLASS

ENTROPY

MAGNITUDE

BY ENERGY

BY ENTROPY

IN ATTRACTOR

Name,

faults

 

Y.M.D.

K

W

Ms

 Pê

 Pw

P

FORECAST

Nearest

Critical

Values

1923.09.01

Kanto

16.726-16.742

18.339-18.345

8.0      

Zone À

1953.11.25

Boso Oki

16.764

18.351

 

8.3      

Zone Â

1703.12.31

Genroku

16.756-16.762?

18.345-18.351?

8.3      

Zone Ñ

 

Preparation of the strong earthquake

July-August

2008 Jun.30

2008 Jul.10

2008 Jul.20

  2008 Jul. 31

 2008 Aug. 10

 2008 Aug. 20

 2008 Aug. 31

 

16.756

16.756

16.756

  16.756   

  16.756   

  16.756   

  16.756   

18.330

18.334

18.337

  18.341  

  18.345  

  18.348  

  18.353  

 

 

 

64.44%

64.44%

64.44%

  64.44% 

  64.44% 

  64.44% 

  64.44% 

59.31%

59.54%

59.77%

  60.01% 

  60.24% 

  60.46% 

  60.68% 

38.22%

38.37%

38.52%

  38.67%  

  38.82%  

  38.96%  

  39.11%  

 

 

 

Danger

Danger

Danger

Danger

FORECAST

 

2008.07.25-2008.08.25

 

16.756

 

18.340-18.351

 

8.3

 

64.44%

60.01%-60.57%

38.67%-39.03%

Dangerous

Zone Ñ

Tokyo

 

 

 

 

 

                                          

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