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地震・火山研究グループ研究会(7月29日)

Seismic and Volcanic Hazards Mitigation Research Group Workshop (July 29, 2022)

セミナー等

SEMINARS

更新日:2022.07.08

Updated: 2022.07.08

2022年度(令和4年度)第3回の京大防災研 地震・火山グループ研究会開催をお知らせいたします。
今回は5月に防災研に着任されたベルトラン・ルエレドゥ特定助教と京都大学大学院理学研究科に現在滞在中のメキシコの科学研究高等教育センター(CICESE)のヘクトル・ゴンザレスフイザール先生に発表いただきます。なお、発表は英語で行われます。
研究会はハイブリッド形式で開催いたしますが、感染症対策のため現地での参加は原則防災研究所の教職員・学生に限らせていただきます。所外の方は、オンラインでの参加をお願いいたします。皆様お誘い合わせの上、是非ご参加いただきますようお願い申し上げます。

Here is information of the 3rd seminar of the Earthquake and Volcano Group Research, DPRI, Kyoto Univerity in FY2022 on July 29.
Two speakers are invited to this seminar. One is Dr. Bertrand ROUET-LEDCU, who recently joined the Earthquake and Volcano Group Research, DPRI.
The other is Dr. Hector GONZALEZ-HUIZAR, who is the head of the Seismology department, CICESE, Mexico. He is now visiting Prof Enescu Bogdan at Yoshida Campus.
The seminar is held in a hybrid style. We ask that only staff and students of DPRI can participate on-site because of COVID-19. Your on-line participation is welcomed.


-------------- 2022年7月 地震・火山グループ研究会 -------------
-------------- Colloquium of Earthquake and Volcano Hazard Group --------------

日 時:2022年7月29日(金)15:00 – 17:00(予定)
Date:15:00-17:00 July 29 (Friday), 2022
場 所:京都大学防災研究所 連携研究棟3階301号室(大セミナー室)での対面とZoom(事前登録)によるハイブリッド方式
    https://www.kyoto-u.ac.jp/ja/access/campus/map6r-uji
   (構内マップ中の77番の建物です。)
Location:In-person, Room 301, Collaborative Research Hub, DPRI, Uji Campus, Kyoto University or On-line with Zoom


プログラム(Program)
15:00-16:00 Dr. Bertrand ROUET-LEDUC (Program-specific Assistant Professor, DPRI, Kyoto Univ.)
Title:Detecting slow slip and tremor using machine learning
Abstract:Faults can accommodate stress in a variety of slip modes, from dynamic rupture to slow slip events and aseismic slip. Among these slip modes, slow slip events and often-accompanying tremor remain among the most elusive and poorly understood. Unraveling the interactions between slip modes is at stake: while laboratory experiments point to aseismic nucleation generally preceding dynamic rupture, observations in the field are far from systematic, and more the exception than the rule. However, the difficulty in detecting transient slow slip events, either seismically or geodetically, points to a possible observational gap that may explain the rarity of slow deformation detected prior to dynamic earthquakes. In this presentation, the use of machine learning to improve the detection of slow slip events and accompanying tremor will be explored, as a tool to fill this observational gap, both in seismic data and in geodetic data.

16:00-17:00 Dr. Hector GONZALEZ-HUIZAR (Head of Seismology Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Mexico)
Title:Observations of dynamic triggering of earthquakes and tremor in Mexico
Abstract:After a large magnitude earthquake occurs some areas near its epicenter experience an increase in seismic activity. However, increases in seismicity have also been observed in places very distant from large earthquakes the moments after they occur. This phenomenon is known as dynamic or remote triggering of seismicity. This is explained as the result of physical changes caused by the passing of the seismic waves that bring faults closer to failure. Besides regular earthquakes, other types of seismic events can be dynamically triggered, including tectonic tremor and slow slip events. In this work, I present observations of dynamic triggering in Mexico caused by global earthquakes, as well as observations of dynamic triggering in other parts of the world caused by Mexican earthquakes, including the 2017 M8.2 Tehuantepec, Mexico earthquake.


今年度の地震火山グループ研究会予定:
4/22(金)地震予知・地震防災(理学系)
6/24(金):地震災害
7/29(金):地震予知・地震防災(理学系)
9/30(金):地震防災(工学系)
11/25(金):地震予知・地震防災(理学系)
12/23(金):火山
3/17(金)or 19(月)or 22(水):退職者講演

2022年度(令和4年度)第3回の京大防災研 地震・火山グループ研究会開催をお知らせいたします。
今回は5月に防災研に着任されたベルトラン・ルエレドゥ特定助教と京都大学大学院理学研究科に現在滞在中のメキシコの科学研究高等教育センター(CICESE)のヘクトル・ゴンザレスフイザール先生に発表いただきます。なお、発表は英語で行われます。
研究会はハイブリッド形式で開催いたしますが、感染症対策のため現地での参加は原則防災研究所の教職員・学生に限らせていただきます。所外の方は、オンラインでの参加をお願いいたします。皆様お誘い合わせの上、是非ご参加いただきますようお願い申し上げます。

Here is information of the 3rd seminar of the Earthquake and Volcano Group Research, DPRI, Kyoto Univerity in FY2022 on July 29.
Two speakers are invited to this seminar. One is Dr. Bertrand ROUET-LEDCU, who recently joined the Earthquake and Volcano Group Research, DPRI.
The other is Dr. Hector GONZALEZ-HUIZAR, who is the head of the Seismology department, CICESE, Mexico. He is now visiting Prof Enescu Bogdan at Yoshida Campus.
The seminar is held in a hybrid style. We ask that only staff and students of DPRI can participate on-site because of COVID-19. Your on-line participation is welcomed.


-------------- 2022年7月 地震・火山グループ研究会 -------------
-------------- Colloquium of Earthquake and Volcano Hazard Group --------------

日 時:2022年7月29日(金)15:00 – 17:00(予定)
Date:15:00-17:00 July 29 (Friday), 2022
場 所:京都大学防災研究所 連携研究棟3階301号室(大セミナー室)での対面とZoom(事前登録)によるハイブリッド方式
    https://www.kyoto-u.ac.jp/ja/access/campus/map6r-uji
   (構内マップ中の77番の建物です。)
Location:In-person, Room 301, Collaborative Research Hub, DPRI, Uji Campus, Kyoto University or On-line with Zoom


プログラム(Program)
15:00-16:00 Dr. Bertrand ROUET-LEDUC (Program-specific Assistant Professor, DPRI, Kyoto Univ.)
Title:Detecting slow slip and tremor using machine learning
Abstract:Faults can accommodate stress in a variety of slip modes, from dynamic rupture to slow slip events and aseismic slip. Among these slip modes, slow slip events and often-accompanying tremor remain among the most elusive and poorly understood. Unraveling the interactions between slip modes is at stake: while laboratory experiments point to aseismic nucleation generally preceding dynamic rupture, observations in the field are far from systematic, and more the exception than the rule. However, the difficulty in detecting transient slow slip events, either seismically or geodetically, points to a possible observational gap that may explain the rarity of slow deformation detected prior to dynamic earthquakes. In this presentation, the use of machine learning to improve the detection of slow slip events and accompanying tremor will be explored, as a tool to fill this observational gap, both in seismic data and in geodetic data.

16:00-17:00 Dr. Hector GONZALEZ-HUIZAR (Head of Seismology Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Mexico)
Title:Observations of dynamic triggering of earthquakes and tremor in Mexico
Abstract:After a large magnitude earthquake occurs some areas near its epicenter experience an increase in seismic activity. However, increases in seismicity have also been observed in places very distant from large earthquakes the moments after they occur. This phenomenon is known as dynamic or remote triggering of seismicity. This is explained as the result of physical changes caused by the passing of the seismic waves that bring faults closer to failure. Besides regular earthquakes, other types of seismic events can be dynamically triggered, including tectonic tremor and slow slip events. In this work, I present observations of dynamic triggering in Mexico caused by global earthquakes, as well as observations of dynamic triggering in other parts of the world caused by Mexican earthquakes, including the 2017 M8.2 Tehuantepec, Mexico earthquake.


今年度の地震火山グループ研究会予定:
4/22(金)地震予知・地震防災(理学系)
6/24(金):地震災害
7/29(金):地震予知・地震防災(理学系)
9/30(金):地震防災(工学系)
11/25(金):地震予知・地震防災(理学系)
12/23(金):火山
3/17(金)or 19(月)or 22(水):退職者講演

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© Research Center for Earthquake Hazards.

© Research Center for Earthquake Hazards.