Session outline
| Solid Earth Sciences (S) | ||
|---|---|---|
| Session Sub-category | Seismology (SS) | |
| Session ID | S-SS04 | |
| Title | Seismicity | |
| Short Title | Seismicity | |
| Main Convener | Name | Nana Yoshimitsu |
| Affiliation | Kyoto University | |
| Co-Convener 1 | Name | Fuyuki Hirose |
| Affiliation | Seismology and Tsunami Research Department, Meteorological Research Institute | |
| Session Language |
E |
|
| Scope |
The objective of this session is to discuss spatio-temporal characteristics and governing mechanisms of seismicity, focusing on earthquake activity as an ensemble rather than as individual events. In addition to case studies on regional characteristics and specific earthquake sequences, this session aims to advance our understanding of the physical and chemical processes that control seismicity. We also welcome presentations addressing interactions among seismic events at various spatio-temporal scales, the boundary conditions that define seismic activity, such as tectonics, geological structures, and thermal regimes, and phenomena associated with earthquake occurrence. |
|
| Presentation Format | Oral and Poster presentation | |
| Time | Presentation No | Title | Presenter |
|---|---|---|---|
| Oral Presentation May 26 PM1 | |||
| 13:45 - 14:00 | SSS04-01 | Three Decades of Japan's Unified Earthquake Catalog: Current Advances and Future Directions with AI Technology | Koji Tamaribuchi |
| 14:00 - 14:15 | SSS04-02 | Scalable GPU Implementation of Double-Difference Hypocenter Relocation | Makoto Naoi |
| 14:15 - 14:30 | SSS04-03 | Estimation of the Earthquake Fault Plane Using HypoTD-Derived Hypocenter Distributions Immediately After the Mainshock, and Characteristics of Seismic Activity on the Fault Plane | Shigeki Horiuchi |
| 14:30 - 14:45 | SSS04-04 | Long-Term b-Value and Seismic Rate from Earthquake Catalogs with Time-Varying Completeness and Uncertain Magnitudes | Cyrielle Colin |
| 14:45 - 15:00 | SSS04-05 | Earthquake hazard for inland Japan with very shallow depth of M≧6 calculated simply from seismicity data | Ritsuko S. Matsu'ura |
| 15:00 - 15:15 | SSS04-06 | Spatiotemporal analysis of seismicity within tectonic zones in Japan using the ETAS model | Harumi Uchida |
| Oral Presentation May 26 PM2 | |||
| 15:30 - 15:45 | SSS04-07 | Seismic Quiescence and Activation Prior to the 1944 Tonankai Earthquake (M7.9) | Sumio Yoshikawa |
| 15:45 - 16:00 | SSS04-08 | Fault activity and stress field of shallow intraplate earthquakes in northern South Island, New Zealand | Ayaka Tagami |
| 16:00 - 16:15 | SSS04-09 | Spatial and temporal variability of earthquake triggering in the 2016 M7.8 Kaikoura earthquake region: insights from ETAS modelling and b-value analysis | Deborah Valerie Karolina Philipp-Granger |
| 16:15 - 16:30 | SSS04-10 | Understanding the nature of fluid migration in the Noto earthquake swarm region through in-situ Vp/Vs ratio analysis | Yihe Huang |
| 16:30 - 16:45 | SSS04-11 | Implications for Fluid Involvement to January 6, 2026 M6.4 Earthquake in Eastern Shimane Prefecture and Deep Low-Frequency Earthquakes from a Local Seismic Velocity Structure | Tomomi Okada |
| 16:45 - 17:00 | SSS04-12 | 2025 earthquake swarm activity in the sea area near the Tokara Islands, Japan, derived from integrated land and ocean-bottom seismic observations | Hiroshi Yakiwara |
| Presentation No | Title | Presenter |
|---|---|---|
| Poster Presentation May 26 PM3 | ||
| SSS04-P01 | Comparison of Event Catalog Characteristics from JMA, Universities, and NIED Prior to Catalog Processing (1985–1997) in the Inland Kanto and Chubu Regions | Hisahiko Kubo |
| SSS04-P02 | Seismicity in the southern Hyuga-nada region in the 1990s revealed by a deep-learning-based earthquake catalog | Takanori MARUMIYA |
| SSS04-P03 | Wide-area characteristics of high-frequency waveform correlations using multiple repeating earthquake groups | Koki Saito |
| SSS04-P04 | Long-term evaluation of the crustal seismicity in whole Japan using the HIST-ETAS model | Taku Ueda |
| SSS04-P05 | Natural time analysis of seismicity before M8-class earthquakes – Is κ1=0.07 a precursor? | Kei Katsumata |
| SSS04-P06 | Mixture of the ETAS and rate-and-state seismicity models: an extension into the space-time modeling | Takaki Iwata |
| SSS04-P07 | Temporal change in the Gutenberg-Richter b-value during the 2025 Tokara Islands earthquake swarm sequence | Reiji Kobayashi |
| SSS04-P08 | Spatiotemporal variation in b-values along the Futagawa and Hinagu fault zones before the 2016 Kumamoto earthquake sequence | Hironori Kawakata |
| SSS04-P09 | Seismic Activity Beneath the Eastern Offshore Boso Peninsula, Japan | Tomotake Ueno |
| SSS04-P10 | Effect of a 3D seismic velocity model and a new OBS network on focal mechanism estimation | Katsuhiko Shiomi |
| SSS04-P11 | Estimation of hypocenter location based on a three-dimensional velocity structure model and attempt to detect microearthquakes in Hyuga-nada using ocean bottom seismometers | Kenichiro Imai |
| SSS04-P12 | Stress field estimation and evaluation in eastern Hokkaido | Ayaka Tagami |
| SSS04-P13 | Intraslab seismicity on the downdip side of the 2011 Tohoku-oki earthquake | Ryota Hino |
| SSS04-P14 | Is the 2006 ML=7.0 Pingtung earthquake doublet caused by serpentinized mantle dehydration? | Wen-Bin Doo |
| SSS04-P15 | Determination of the Favourable Orientation of Faults and Seismogenesis in the Delhi National Capital Region, India. | SUDIPTO BHATTACHARJEE |
| SSS04-P16 | Seismic activity and crustal deformation in northern Yamaguchi prefecture since February 2025. | Jumpei Shimizu |
| SSS04-P17 | Campaign Observation of the Seismic Swarm in Northern Yamaguchi | Naofumi Aso |
| SSS04-P18 | Crustal Structure in the Source Region of the Seismic Swarm in Northern Yamaguchi | Kengo Ohuchi |
| SSS04-P19 | The investigation of Physical Characteristics of the Earthquake Swarm in Northern Yamaguchi Prefecture Based on Multiple Indicators | Shuhei Usami |
| SSS04-P20 | Waveform Clustering of the Seismic Swarms in Northern Yamaguchi | Momoka Yamashita |
| SSS04-P21 | Multiple diffusive seismicity migrations in a deep crustal earthquake swarm, northern Yamaguchi, Japan | Yuta Amezawa |
| SSS04-P22 | Unravelling intricate fault structure for the Mj 6.4 eastern Shimane earthquake on 6 January 2026 | Yasunori Sawaki |
| SSS04-P23 | Spatiotemporal Distribution of Volcanic Earthquake Swarms at Izu-Oshima in 2023 | Hinako Arakawa |
| SSS04-P24 | Inter-Event Time Distributions of Volcanic Earthquakes at Aso | HARUKA KUROIWA |
| SSS04-P25 | Relationship between Deep Low-Frequency Earthquakes at Hakone Volcano and Surrounding Tectonic Activity | Ryo Kurihara |
| SSS04-P26 | Triggering Characteristics of Low-Frequency Earthquakes in Shikoku | Shimomura Kaito |