Description is identical as next line unless otherwise noted.
'05.05.02 05:40 JST (UT+9Hours)
-1. Now working on restoration of yesterday's data.
1.Present Status on 5/1: Almost calm on Tree-1, Data of Tree-2 and Ground Potential will be uploaded later.
'05.05.01 05:20 JST (UT+9Hours)
1.Present Status on 4/30: Almost calm on Tree-1,2 and Ground Potential.
2. Anomalous Information: Now under careful watching for the following precursor.
An EQ may occurred related to P05-15 at Hokkaido east, please refer to Menu-1E for detail.An EQ may occurred related to P05-16 at Chiba east, please refer to Menu-1E for detail.
P05-15（P=Precursor): Anomaly on Tree-1 observed on 4/26 may be precursor of an EQ with Magnitude of more than 5.0 which occurs around Hokkaido by 5/6.
P05-16（P=Precursor): Anomaly on Tree-2 observed on 4/26 may be precursor of an EQ with Magnitude of lass than 5.0 which occurs around Kanto by 5/3.
Please refer to Menu-1E for more detail.
'05.04.30 03:40 JST (UT+9Hours)
1.Present Status on 4/29: Anomalies were observed on Tree-2, should be watched carefully for a while. Almost calm on Tree-1 and Ground Potential.
2. Anomalous Information: Now under careful watching for the following precursor.
An EQ may occurred related to P05-16 at Chiba east, please refer to Menu-1E for detail.P05-15（P=Precursor): Anomaly on Tree-1 observed on 4/26 may be precursor of an EQ with Magnitude of more than 5.0 which occurs around Hokkaido by 5/6.
P05-16（P=Precursor): Anomaly on Tree-2 observed on 4/26 may be precursor of an EQ with Magnitude of lass than 5.0 which occurs around Kanto by 5/3.
Please refer to Menu-1E for more detail.
'05.04.29 07:40 JST (UT+9Hours)
1.Present Status on 4/28: Anomalies were observed on Tree-1, 2. Outline is shown below and details will be uploaded later.
Almost calm on Ground Potential.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
However, since the occurrence of the corresponding earthquake is unknown, I cancel cautions observation.
2. Anomalous Information: Now under careful watching for the following precursor.
I think that the anomalies on 4/28 is followed from P05-16.P05-15（P=Precursor): Anomaly on Tree-1 observed on 4/26 may be precursor of an EQ with Magnitude of more than 5.0 which occurs around Hokkaido by 5/6.
P05-16（P=Precursor): Anomaly on Tree-2 observed on 4/26 may be precursor of an EQ with Magnitude of lass than 5.0 which occurs around Kanto by 5/3.
Please refer to Menu-1E for more detail.
'05.04.28 03:00 JST (UT+9Hours)
1.Present Status on 4/27: Almost calm on Tree-1, 2 and Ground Potential.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
2. Anomalous Information: Now under careful watching for the following precursor.
P05-15（P=Precursor): Anomaly on Tree-1 observed on 4/26 may be precursor of an EQ with Magnitude of more than 5.0 which occurs around Hokkaido by 5/6.
P05-16（P=Precursor): Anomaly on Tree-2 observed on 4/26 may be precursor of an EQ with Magnitude of lass than 5.0 which occurs around Kanto by 5/3.
Please refer to Menu-1E for more detail.
2. Anomalous Information: Comments on anomalies observed yesterday is uploaded Menu-1E.
3. Safety Information: No anomalous data which may be precursory signal for big earthquake within 24 hours around
'05.04.27 03:50 JST (UT+9Hours)
1.Present Status on 4/26: Negative anomaly on Tree-1 and positive anomalies 3 time on Tree-2 were observed.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
2. Anomalous Information: Comments on anomalies observed yesterday will
be uploaded later.'05.04.26 05:50 JST (UT+9Hours)
1.Present Status on 4/25: Almost calm on Tree-1, 2 and Ground potential.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
2. Anomalous Information: Nothing special.
'05.04.25 02:50 JST (UT+9Hours)
1.Present Status on 4/24: Almost calm on Tree-1, 2 and Ground potential.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
2. Anomalous Information: It seems that no EQ related to the following P05-14B occurred. Please consider it is happy.P05-14B （P=Precursor) : The anomalies on Tree-1 and 2 on 4/14, 15 may be precursor of an EQ which occurs in North KANTO area with magnitude of less than 5.0 by 4/21. Please refer to Menu-1E for detail.
3. Safety Information: No anomalous data which may be precursory signal for big earthquake within 24 hours around Hokkaido, Tohoku, Kanto districts and Izu islands is observed.
'05.04.23 05:30 JST (UT+9Hours)
0. Next data will be updated on late 4/24 due to going out for some work.1.Present Status on 4/22: Although small anomalies were observed on Tree-1, 2 and Ground potential due to rain, almost calm.
As the Ground Potential is now under analysis, I can not recognize for the anomalies.
Data around 22:00 on 4/22 was not able to be aquired due to power interruption in house.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
'05.04.22 04:40 JST (UT+9Hours)
1.Present Status on 4/21: Although small anomalies were observed on Tree-1, 2 and Ground potential, almost calm.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
'05.04.21 05:40 JST (UT+9Hours)
1.Present Status on 4/20: Although anomalies due to rain were observed on Tree-1, 2 and Ground potential, almost calm.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18, 19 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
'05.04.20 03:40 JST (UT+9Hours)
'05.04.19 05:20 JST (UT+9Hours)
1.Present Status on 4/18: Although small anomalies were observed on Tree-1, 2 and Ground potential, almost calm.
Many anomalies were observed at Miwa, Aichi, observation Post (Only Japanese) on 4/18 as shown in the bottom of this page.
Please watch carefully for a while. I can not judge if it is seismic or not, as the observation started recently.
'05.04.18 06:50 JST (UT+9Hours)
1.Present Status on 4/17: Although small anomalies were observed on Tree-1, 2 and Ground potential, almost calm.
'05.04.17 01:40 JST (UT+9Hours)
1.Present Status on 4/16: Almost calm on Tree-1, 2 and Ground potential.
'05.04.16 05:10 JST (UT+9Hours)
1.Present Status on 4/15: Although seismic anomalies were observed on Tree-1, 2 and Ground potential, Tree-1 anomaly should be judged as seasonal daily pattern as the identical anomaly was observed again on Tree-1.2. Anomalous Information: P05-14B （P=Precursor) : The anomalies on Tree-1 and 2 on 4/14, 15 may be precursor
of an EQ which occurs in North KANTO area with magnitude of less than 5.0
by 4/21. Please refer to Menu-1E for detail.'05.04.15 04:40 JST (UT+9Hours)
0. Anomaly at Toyohashi on 4/8 shown below may be precursor of an EQ which
occurred Tokaido off shore M=4.3 yesterday. Comment is uploaded at Menu-1E.1.Present Status on 4/14: Seismic anomalies were observed on Tree-1, 2
and Ground potential, Comment is uploaded at Menu-1E.2. Anomalous Information: P05-14 （P=Precursor) : The anomalies on Tree-1 and 2 on 4/14 may be precursor
of an EQ which occurs in North KANTO area with magnitude of more than 5.0
and less than 6.0 by 4/21. Please refer to Menu-1E for detail.'05.04.15 04:40 JST (UT+9Hours)
0. Anomaly at Toyohashi on 4/8 shown below may be precursor of an EQ which
occurred Tokaido off shore M=4.3 yesterday. Comment will be uploaded later.1.Present Status on 4/14: Seismic anomalies were observed on Tree-1, 2 and Ground potential, will be uploaded later.
2. Anomalous Information:
3. Safety Information: No anomalous data which may be precursory signal for big earthquake within 24 hours around Hokkaido, Tohoku, Kanto districts and Izu islands is observed.
'05.04.14 05:40 JST (UT+9Hours)
0. Anomaly at Toyohashi on 4/9 shown below is not judged as seismic, because
almost same data was observed yesterday. The anomaly may be seasonal dayly
pattern at Toyohashi.1.Present Status on 4/13: Although anomaly due to rain on Tree-2 and Groun potential were observed, almost calm on Tree-1,2 and Ground Potential.
A little larger anomaly was observed at Toyohashi Tree-1 on 4/8
I think that the saw tooth wave is not seismic.
'05.04.13 03:40 JST (UT+9Hours)
1.Present Status on 4/12: Although anomaly due to rain on Tree-2 was observed, almost calm on Tree-1,2 and Ground Potential.
A little larger anomaly was observed at Toyohashi Tree-1 on 4/8, 9. Graph is shown below. I carefully watch Toyohashi data for a while.
I think that the saw tooth wave is not seismic.
'05.04.12 08:30 JST (UT+9Hours)
-1. Automatic update of AMeDAS Data is stopped, now under investigation.
0. Comment as to 4/11 Chiba North-west EQ M=6.1 is uploaded at Menu-1E.
1.Present Status on 4/11: Although anomaly due to rain on Tree-2 was observed, almost calm on Tree-1,2 and Ground Potential.
A little larger anomaly was observed at Toyohashi Tree-1 on 4/8, 9. Graph is shown below. I carefully watch Toyohashi data for a while.
I think that the saw tooth wave is not seismic.
'05.04.11 02:50 JST (UT+9Hours)
'05.04.10 03:50 JST (UT+9Hours)
'05.04.09 06:40 JST (UT+9Hours)
1.Present Status on 4/7: Although the "Spring daily pattern (tentative name)" on Tree-2 was observed , almost calm on Tree-1,2 and Ground Potential.
A little larger anomaly was observed at Toyohashi Tree-1. Graph is shown below. I carefully watch Toyohashi data for a while.
I think that the saw tooth wave is not seismic.
'05.04.08 05:10 JST (UT+9Hours)
1.Present Status on 4/7: Although small anomaly on Tree-1 and the "Spring daily pattern (tentative name)" on Tree-2 were observed , almost calm on Tree-1,2 and Ground Potential.
'05.04.07 05:10 JST (UT+9Hours)
1.Present Status on 4/6: Although small anomaly on Tree-1 and the "early spring daily pattern (tentative name)" on Tree-2 were observed , almost calm on Tree-1,2 and Ground Potential.
'05.04.06 01:40 JST (UT+9Hours)
1.Present Status on 4/5: Although the "early spring daily pattern (tentative name)" was observed on Tree-2, almost calm on Tree-1,2 and Ground Potential.
Both side of positive and negative anomalies were observed on 4/3, comment
is uploaded at Menu-1E.2. Anomalous Information: Nothing special.
3. Safety Information: No anomalous data which may be precursory signal for big earthquake within 24 hours around Hokkaido, Tohoku, Kanto districts and Izu islands is observed.
4. Ground Potential which is started newly are displayed in one graph as shown below.
Observation method will be uploaded later day.
5. For Mac User: Please down load the following program in order to view real time graph. (Japanese only)
http://www.adobe.co.jp/svg/viewer/install/main.html
Both side of positive and negative anomalies were observed on 4/3, comment
is uploaded at Menu-1E.'05.04.05 04:40 JST (UT+9Hours)
0. For Mac User: Please down load the following program in order to view
real time graph. (Japanese only)http://www.adobe.co.jp/svg/viewer/install/main.html
1.Present Status on 4/4: Although small anomaly due to rain was observed, almost calm on on Tree-1, Tree-2 and Ground Potential.
Both side of positive and negative anomalies were observed on 4/3, comment will be uploaded later.
'05.04.04 05:40 JST (UT+9Hours)
0. For Mac User: Please down load the following program in order to view
real time graph. (Japanese only)http://www.adobe.co.jp/svg/viewer/install/main.html
1.Present Status on 4/3: Both side of positive and negative anomalies were observed yesterday, comment will be uploaded later.
Although the "early spring daily pattern (tentative name)" was observed on Tree-2, almost calm on Tree-2 and Ground Potential.
'05.04.03 15:40 JST (UT+9Hours)
1.Present Status on 4/2: Although the "early spring daily pattern (tentative name)" was observed on Tree-2,
almost calm on Tree-1, Tree-2 and Ground Potential.
2. Anomalous Information: Nothing special.
3. Safety Information: No anomalous data which may be precursory signal for big earthquake within 24 hours around Hokkaido, Tohoku, Kanto districts and Izu islands is observed.
4. Ground Potential which is started newly are displayed in one graph as shown below.
Observation method will be uploaded later day.
'05.04.02 04:00 JST (UT+9Hours)
1.Present Status on 4/1: Almost calm on Tree-1, Tree-2 and Ground Potential.
0. Real time data is restarted. (11:00)'05.04.01 04:10 JST (UT+9Hours)
3. Safety Information: No anomalous data which may be precursory signal for big earthquake within 24 hours around Hokkaido, Tohoku, Kanto districts and Izu islands is observed.
4. Ground Potential which is started newly are displayed in one graph as shown below.
Observation method will be uploaded later day.
P05-12: If the anomalies on 2/20 shown below may be precursor of the EQ mentioned above, however, if a big anomaly will be observed again by the middle of March, there is a possibility to occur a big EQ under KANTO area within 1 week after then.
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Special thanks to EARI-San for Tree-1 Graph generation tool and NAMAZUSKI-San for other Graphs.
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[Copyright (C) 2003-4 SAITO Yoshiharu. All rights reserved.]
Sorry, it may take long time to answer. When you have any question, it will be appreciated, if you could ask to Japanese around you first. I expect that he/she explains about descriptions in Japanese pages of my Home Page.