Post Workshop Report: International Joint Workshop on Slow-to-Fast Earthquakes 2023
By: Syed Idros Bin Abdul Rahman (Kyushu University)

Summary of Workshop
The International Joint Workshop on Slow-to-Fast Earthquakes 2023, which took place at Ito Hall, Ito International
Research Center, Hongo Campus, The University of Tokyo, from September 13 to September 15, 2023, has been an
exceptional experience for someone pursuing a Ph.D. in seismology like myself. It provided a stimulating platform
for the exchange of knowledge, collaborative opportunities, and a deeper exploration of the intricate dynamics ofearthquakes. Notably, this workshop held particular significance as it coincided with the centenary of the Great
Kanto Earthquake, a stark reminder of the urgency of advancing our understanding of seismic phenomena.
Before the official workshop proceedings commenced, an early career event set the stage for engaging discussions
and networking. The opportunity to present my poster to fellow early career researchers was invaluable, laying thegroundwork for meaningful interactions throughout the workshop.
The scientific sessions were a highlight of the workshop, covering a wide spectrum of topics related to slow-to-fastearthquakes. As a Ph.D. student whose research centers on the effects of hydrological loading on seismicity, there
were several presentations that offered a lot of insights and fresh perspectives to bolster my ongoing work.

Figure 1: Seismograph museum in ERI
The poster sessions were a crucial component of knowledge dissemination and peer interaction. Engaging withfellow scientists allowed me to not only present my own research but also engage in insightful discussions on amyriad of topics.

The informal ice breaker event on the first day provided a relaxed setting for networking and forming connections.
It was a delightful occasion to savor diverse cuisines while forging new friendships within the scientific community.
Additionally, during one of the workshop days, we were treated to a guided tour of the Tokyo University campus,
including a visit to the Earthquake Research Institute. At the institute, we explored the Seismograph Museum,
where we had the privilege of witnessing the evolution of seismography over the past century. The experience wasboth enlightening and humbling, allowing us to appreciate how far the field of seismology has progress in Japan.
The workshop's impeccable organization ensured a seamless experience for all participants, from schedulingsessions to logistical arrangements, enabling us to fully immerse ourselves in the scientific discourse.

Fieldtrip to Boso Peninsula

Figure 2: Uplifted terraces along the sea
One of the most memorable aspects of the workshop was the field trip to the southern area of the Boso Peninsula
in Chiba Prefecture. This excursion aimed to look at the geomorphic records of the Great Kanto Earthquakes,
including the 1923 and 1703 events. The itinerary included visits to Kenbutsu Beach, Shirahama, and Chikura,
where we examined terraces, biomarkers, and marine terraces, offering invaluable insights into the geologicalhistory of the region.
In conclusion, the International Joint Workshop on Slow-to-Fast Earthquakes 2023 was a transformative
experience for me. It provided a platform to exchange ideas, foster collaborations, and gain fresh perspectives onseismic phenomena. The field trip, coinciding with the centenary of the Great Kanto Earthquake, added a poignant
dimension to the workshop. This experience has significantly enriched my academic journey, and I eagerly
anticipate applying the knowledge gained to advance my research.