| 1-1 |
Recent Seismic Activity in and around Hokkaido (May, 1981-November, 1981) (Hokkaido Univ.) PDF[406KB] |
| 1-2 |
Two Shallow Earthquakes on April, 1981 in the Central Part of Hokkaido (Hokkaido Univ.) PDF[541KB] |
| 1-3 |
The Earthquake (M6.5) on September 3,1981 off Shikotan Island in Southern Kurile (Hokkaido Univ.) PDF[366KB] |
| 1-4 |
The Earthquake off the Southeast Coast of Nemuro Peninsula, September 3,1981 (JMA) PDF[364KB] |
| 1-5 |
The Earthquake of the North of the Lake Shikotsu, October 18,1981 (Hokkaido Univ.) PDF[472KB] |
| 1-6 |
Vertical Movements in the Hidaka Area of Hokkaido District (GSI) PDF[277KB] |
| 1-7 |
Results of Resurvey at Akkeshi Rhombus Base Lines in the Southeast Part of Hokkaido District (GSI) PDF[343KB] |
| 2-1 |
Microearthquake Activity in and around the Tohoku District (May-October, 1981) (Tohoku Univ.) PDF[990KB] |
| 2-2 |
Vertical Movements in the Northern Part of Tohoku District (GSI) PDF[1.5MB] |
| 2-3 |
Observations of Crustal Movements at the Esashi Earth Tides Station (ILO) PDF[315KB] |
| 2-4 |
Radon Observations in the Eastern Part of Fukushima Prefecture (Tokyo Univ.) PDF[255KB] |
| 3-1 |
Microearthquake Activity in and around the Kanto District (May, 1981-October, 1981) (ERI) PDF[1.2MB] |
| 3-2 |
Seismicity Maps of the Kanto District, 1971-80 (ERI) PDF[1.2MB] |
| 3-3 |
Recent Seismic Activities in the Kanto-Tokai Area (April-October, 1981) (CDP) PDF[1.4MB] |
| 3-4 |
Microearthquake Seismicity in the Western Part of Kanagawa Prefecture (Tohoku Univ.) PDF[354KB] |
| 3-5 |
The Earthquake off Ibaraki Prefecture, September 2,1981 (JMA) PDF[324KB] |
| 3-6 |
Seismic Activity in the Shin-etsu District (April-September, 1981) (ERI) PDF[675KB] |
| 3-7 |
Automatic Data Processings of Microearthquake Signals (ERI) PDF[1.1MB] |
| 3-8 |
Crustal Movement in the Southern Part of Boso Peninsula (GSI) PDF[558KB] |
| 3-9 |
Survey Result of Precise Leveling in the Metropolitan Area (GSI) PDF[316KB] |
| 3-10 |
Observation of Crustal Strains by Borehole Strainmeters in the Kanto and Tokai Districts (JMA) PDF[614KB] |
| 3-11 |
Recent Continuous Measurements of Ground Tilt in the Kanto-Tokai Area (May-October, 1981) (CDP) PDF[705KB] |
| 3-12 |
Continuous Measurements of Radon Concentration in Groundwater at the Fuchu Crustal Activity Observatory Site, Tokyo (CDP) PDF[274KB] |
| 3-13 |
Stress Change Monitoring by a Borehole Inclusion Stressmeter in the Tanzawa Mountains (GS) PDF[454KB] |
| 3-14 |
Submarine Topography and Geological Structure at the Offing of Sunosaki (HD) PDF[548KB] |
| 4-1 |
Seismic Activities in the Izu Peninsula and its Vicinity (June-October, 1981) (ERI) PDF[433KB] |
| 4-2 |
Space-time Distribution of Recent Earthquakes in Izu Peninsula and its Adjacent Region (ERI) PDF[522KB] |
| 4-3 |
Crustal Movement in the Izu Peninsula (GSI) PDF[1.6MB] |
| 4-4 |
In Situ Stress Measurements by a Stress Relief Method at Shimoda City, Izu Peninsula (GS) PDF[325KB] |
| 4-5 |
Some Precursors Accompanied by the Earthquake off the East Coast of Izu, June 29,1980, Observed at the Matsuzaki High School, Shizuoka Prefecture (Kyoto Univ.) PDF[269KB] |
| 4-6 |
Radon Observation in the Izu Peninsula (Tokyo Univ.) PDF[294KB] |
| 4-7 |
Secular Variations of Heat Output of Hot Springs at Atami, Izu Peninsula (ERI) PDF[412KB] |
| 4-8 |
Anomalous Change in the Geomagnetic Total Intensity in the North-Eastern Part of Izu Peninsula (July-October, 1981) (ERI) PDF[353KB] |
| 4-9 |
Geomagnetic Observation at Matsuzaki and Omaezaki (JMA) PDF[199KB] |
| 4-10 |
Epicentral Distribution of the Earthquakes (May, 1981) and Bottom Topography at the Offing of Cape Manazuru (HD) PDF[283KB] |
| 4-11 |
Distribution of Microearthquakes in Tokai District (May 1,1981-October 31,1981) (Nagoya Univ.) PDF[304KB] |
| 4-12 |
Activity of Small Earthquakes in the Tokai District (June-November, 1981) (JMA) PDF[515KB] |
| 4-13 |
Electro-Optical Distance Measurements in the Tokai Region (1977-1981) (Nagoya Univ.) PDF[325KB] |
| 4-14 |
Everyday Measurement of Strain Accumulation along the Fujikawa Fault Using an Electronic Distance Meter (2) (ERI, EAC) PDF[468KB] |
| 4-15 |
Crustal Movement in the Tokai District (GSI) PDF[1.1MB] |
| 4-16 |
Observation of Crustal Vertical Movements by Use of Bottom Pressure Sensor off the Coast of the Tokai District (JMA) PDF[314KB] |
| 4-17 |
Crustal Movement Observation in the Fuji River and Suruga Bay Area (Part-8) (ERI) PDF[388KB] |
| 4-18 |
Free-air Gravity Anomaly at the Offing of Tokai District (HD) PDF[236KB] |
| 4-19 |
Radon Observation in the Tokai District (Tokyo Univ.) PDF[579KB] |
| 4-20 |
Multichannel Seismic Reflection Profiling in the Sagami Trough and the Southern Suruga Trough Area (2) (HD, GS) PDF[268KB] |
| 4-21 |
Tectonic Relief on the Senoumi-Kita Tai , West of the Suruga Trough (HD) PDF[239KB] |
| 4-22 |
Variations in the Geomagnetic Total Intensity in the Omaezaki Area (ERI) PDF[335KB] |
| 5-1 |
Seismic Activity in the Northwestern Chubu Region (Northern Hida and its Surrounding Areas) (5) July, 1980-September, 1981 (Kyoto Univ.) PDF[280KB] |
| 5-2 |
Seismicity in the Eastern Chugoku, Northern Kinki and Hokuriku Districts, Southwest Japan (January, 1980-June, 1981) (Kyoto Univ.) PDF[593KB] |
| 5-3 |
Microearthquake Activities in the Western Part of Kii Peninsula (January-September, 1981) (ERI) PDF[1.1MB] |
| 5-4 |
Change of Ground Water Level before and after a Small Earthquake at the Lake Biwa (Kyoto Univ.) PDF[252KB] |
| 5-5 |
Vertical Movements in the Noto Peninsula (GSI) PDF[177KB] |
| 5-6 |
Survey Result of Nagano Rhombus Base Lines (GSI) PDF[240KB] |
| 5-7 |
Horizontal Strains in the Biwako District (GSI) PDF[394KB] |
| 5-8 |
Secular Ground Deformations Observed at Kamitakara and Results from Electro-optical Surveys on the Atotsugawa Fault (2) (Kyoto Univ.) PDF[654KB] |
| 5-9 |
Absolute Measurements of Crustal Stress by a Stress Relief Method (4) The Kamioka Mine, Chubu (The Research Group for Crustal Stress in Western Japan) PDF[418KB] |
| 5-10 |
Gravity Changes Observed near Lake Biwa (Kyoto Univ.) PDF[308KB] |
| 5-11 |
Gravity Changes Observed in Kii Peninsula during the Period of 1972-1981 (Kyoto Univ.) PDF[237KB] |
| 6-1 |
Changes in Chloride Concentration of Self-spouting Hot Springs Accompanied by Earthquake off Hamada, June 25,1981 (Kyoto Univ , Tottori Univ.) PDF[358KB] |
| 6-2 |
Vertical Movements in the Central Part of Chugoku District (GSI) PDF[288KB] |
| 6-3 |
Survey Results of Izumo Radial Base Lines in the Chugoku District (GSI) PDF[192KB] |
| 6-4 |
Survey Results of Yawatahama Rhombus Base Lines in the Western Part of Shikoku District (GSI) PDF[205KB] |
| 6-5 |
Vertical Movements in the Central Part of Kyushu (GSI) PDF[692KB] |
| 7-1 |
Annual Mean Frequency of Felt Earthquakes in Japan (1951-1980) (JMA) PDF[167KB] |
| 7-2 |
Precise Observation of Geomagnetic Secular Variation under the Project of Earthquake Prediction Research, April-September, 1981 (Geomag. Res. Group) PDF[307KB] |
| 7-3 |
Precise Observation of Geomagnetic Secular Variation under the Project of Earthquake Prediction Research, January, 1977-September, 1981 (Geomag. Res. Group) PDF[177KB] |
| 7-4 |
List of Old Documents of Earthquakes Collected Recently (X) (ERI) PDF[1.7MB] |