Researcher Database

KAWAKATA Hironori

Department / Course College of Science and Engineering Department of Physical Sciences

Title / Position Professor

Academic conference presentation
1.	2019/12/11	Seismic response change of a sand soil after strong motion, revealed by a transmission laboratory experiment (2019 AGU Fall Meeting)
2.	2019/12/10	Propagation characteristic changes of elastic waves transmitted through a sand soil in water injection and drainage processes (2019 AGU Fall Meeting)
3.	2019/05/26	Foreshock activity detection by a threshold-free matched-filter technique (Japan Geoscience Union Meeting 2019)
4.	2018/12/10	24-hours broadband measurements of elastic waves transmitted through sand soils under dry and saturated conditions to investigate differences in propagation characteristics (2018 AGU Fall Meeting)
5.	2018/05/23	Azimuth Estimation of KiK-net seismographs (Japan Geoscience Union Meeting 2018)
6.	2018/05/23	Estimation of moment magnitude of acoustic emissions induced by hydraulic fracturing in the laboratory (Japan Geoscience Union Meeting 2018)
7.	2017/12/15	Observed seismic and infrasonic signals around the Hakone volcano -Discussion based on a finite-difference calculation- (2017 AGU Fall Meeting)
8.	2017/12/14	Extraction of AE events to estimate their b values under a triaxial compressive condition ~Examination using continuous broadband records~ (2017 AGU Fall Meeting)
9.	2017/12/14	Improvement in transmission experiment of elastic waves through partially saturated porous sand soil (2017 AGU Fall Meeting)
10.	2017/12/13	Two types of foreshock activities observed on meter-scale laboratory faults: Slow-slip-driven and cascade-up (2017 AGU Fall Meeting)
11.	2017/05/22	Conceptual Model for Precursory Slow Slip and Foreshocks based on the Balance of Stiffness on and around the Fault (Japan Geoscience Union Meeting 2017)
12.	2017/05/22	Influence of fault surface condition on slip stability in large-scale biaxial friction experiment (Japan Geoscience Union Meeting 2017)
13.	2017/05/22	Strain rate effect on rupture nucleation and mainshock propagation speed (Japan Geoscience Union Meeting 2017)
14.	2016/12	A Possible Mechanism for Labquake Occurrence in Relation to Precursory Slow Slip (2016 AGU Fall Meeting)
15.	2016/12	Foreshock search over a long duration using a method of setting appropriate criteria (2016 AGU Fall Meeting)
16.	2016/12	Influence of fault surface conditions on foreshock activity in large-scale biaxial friction experiment (2016 AGU Fall Meeting)
17.	2016/12	Influence of Fault Surface Heterogeneity on Apparent Frictional Strength, Slip Mode and Rupture Mode: Insights from Meter-Scale Rock Friction Experiments (2016 AGU Fall Meeting)
18.	2016/12	Spatio-temporal foreshock activity during stick-slip experiments of large rock samples (2016 AGU Fall Meeting)
19.	2016/12	Transmission experiment of elastic waves with short wavelengths through a highly porous sand soil during water injection (2016 AGU Fall Meeting)
20.	2015/12/18	Acoustic emission monitoring in Cooke 4 gold mine in South Africa –summary of the main findings of a 5-year SATREPS project– (2015 AGU Fall Meeting)
21.	2015/12/17	Brittle Asperities and Stick-Slip Motion: Insight from Friction Experiments along A Gabbro/Marble Interface (2015 AGU Fall Meeting)
22.	2015/12/17	Effect of fault surface evolution on slip behaviors in large-scale biaxial experiments (2015 AGU Fall Meeting)
23.	2015/12/17	Estimation of Seismic Attenuation beneath Tateyama Volcano, Central Japan by Using Peak Delay (2015 AGU Fall Meeting)
24.	2015/12/17	Estimation of the propagation characteristics of elastic waves propagating through a partially saturated sand soil (2015 AGU Fall Meeting)
25.	2015/12/17	Short-lived Supershear Rupture (2015 AGU Fall Meeting)
26.	2015/12/16	Travel Times of Later Phases for Transmitting Waves through a Fracturing Westerly Granite Sample under a Triaxial Compressive Condition (2015 AGU Fall Meeting)
27.	2015/10/27	Brittle Asperities and Stick-Slip Motion: Insight from Friction Experiments along A Gabbro/Marble Interface (Seismological Society of Japan 2015 Fall Meeting)
28.	2015/05/25	Evolution of rupture style with total fault displacement: insight from meter-scale direct shear experiments (Japan Geoscience Union Meeting 2015)
29.	2015/03	Monitoring of microseismicity in deep gold mines in South Africa (Schatzalp Induced Seismicity workshop)
30.	2014/12/18	Seismic Attenuation beneath Tateyama Volcano, Central Japan (AGU fall meeting)
31.	2014/12/16	Foreshock Activity during Laboratory Friction Tests using Meter-scale Rock Specimens Inferred from two Apparatuses with Different Stiffness (AGU fall meeting)
32.	2014/12/16	Nucleation process of an M2 earthquake in a deep gold mine in South Africa inferred from on-fault foreshock activity (AGU fall meeting)
33.	2014/12/15	Active Monitoring of a Fault with Seismogenic Potential Using an Ultrasonic Transmission at 1 km Deep in the Ezulwini Mine, South Africa (AGU fall meeting)
34.	2014/12/15	Characteristics of 2-D Rupture Propagation of Stick-slip Events during Meter-sized Biaxial Friction Experiments (AGU fall meeting)
35.	2014/12/15	Evolution of Rupture Style with Accumulation of Fault Displacement during Large-scale Biaxial Friction Experiments (AGU fall meeting)
36.	2014/12/15	Foreshocks and Premonitory Slip during Large Scale Friction Experiments (AGU fall meeting)
37.	2014/12/15	Spatial Heterogeneity Induces Scale Dependent Rock Friction (AGU fall meeting)
38.	2014/12/15	Unpredictable Main Rupture Initiation after Premonitory Slow Slip (AGU fall meeting)
39.	2014/08/01	Two-dimensional Rupture Propagation of Stick-slip Events During Large-scale Biaxial Frictional Experiments (AOGS 11th Annual Meeting)
40.	2014/04/29	Observational studies in South African mines to mitigate seismic risks: implications for mine safety and tectonic earthquakes (European Geosciences Union General Assembly 2014)
41.	2013/12/13	Rupture propagation speed during earthquake faulting reproduced by large-scale biaxial friction experiments (2013 AGU Fall Meeting)
42.	2013/12/11	A scaling relationship between AE and natural earthquakes (2013 AGU Fall Meeting)
43.	2013/12/11	How is a stick slip rupture initiated? (2013 AGU Fall Meeting)
44.	2013/12/10	An experiment to locate cavities as strong scatterers using S-coda waves - the Cooke 4 mine in South Africa - (2013 AGU Fall Meeting)
45.	2013/12/09	Velocity weakening of friction strength on meter-sized rock samples (2013 AGU Fall Meeting)
46.	2013/09	In-situ monitoring and modelling of the rock mass response to mining: Japanese-South African collaborative research (8th International Symposium on Rockbursts and seismicity in mines)
47.	2013/05/24	Smooth stress drop under very heterogeneous background stress
48.	2012/12/08	A non-accelerating foreshock sequence followed by a short period of quiescence for a large inland earthquake (2012 AGU Fall Meeting)
49.	2012/12/07	Monitoring seismic wave speed by an active seismic source (2012 AGU Fall Meeting)
50.	2012/12	Large-scale biaxial friction experiments with an assistance of the NIED shaking table (2012 AGU Fall Meeting)
51.	2012/11	Detection of mining-induced fractures around a stope in Ezulwini gold mine, South Africa, by using AE events with similar waveforms (Proceedings of the 21th International Acoustic Emission Symposium)
52.	2011/12/08	Estimation of the seismic moment and the corner frequency with continuous broadband AE records in a fracturing rock sample (2011 AGU Fall Meeting)
53.	2011/12/08	Observational Studies of Earthquake Preparation and Generation to Mitigate Seismic Risks in Mines (2011 AGU Fall Meeting)
54.	2011/12/08	Scaling relationship between corner frequencies and seismic moments of ultra micro earthquakes estimated with coda-wave spectral ratio –the Mponeng mine in South Africa (2011 AGU Fall Meeting)
55.	2011/12/07	Monitoring transmitted waves across a fault with a high potential for mining induced earthquakes –the Ezulwini gold mine in South Africa (2011 AGU Fall Meeting)
56.	2011/11/21	Development of a broadband transducer assembly under triaxial compressive conditions (the 10th SEGJ International Symposium)
57.	2011/06	Observational studies of earthquake preparation and generation to mitigate seismic risks in mines (IUGG 2011 (The International Union of Geodesy and Geophysics))
58.	2010/12/16	Frequency dependence of elastic wave speed (AGU Fall Meeting)
59.	2010/12/15	Receiver function images beneath Kii Peninsula, southwest Japan with an improved procedure (AGU Fall Meeting)
60.	2010/12/13	Temporal changes in Q value of a fracturing rock sample under triaxial conditions (AGU Fall Meeting)
61.	2009/01/16	Temporal changes in S wave attenuation through a fault zone in the Bambanani gold mine, South Africa (IASPEI General Assembly 2009)
62.	2009/01/14	A new system of broad-band elastic wave measurement in laboratory under triaxial compressive conditions (IASPEI General Assembly 2009)
63.	2008/11	Fault structure in Westerly granite samples extracted using a micro-focus X-ray CT scanning system (7th General Assembly of Asian Seismological Commission)
64.	2008/11	Frequency dependent change in amplitude of elastic wave transmitting through fracturing Westerly granite. (7th General Assembly of Asian Seismological Commission)
65.	2006/12	An Attempt to Monitor Stress/ Physical-property at Hypocenters, Using Tidal Response, Mponeng Gold Mine, South Africa (AGU Fall Meeting)
66.	2006/12	Features of initial rupture for the 2005 West Off Fukuoka Earthquake-Temporal evolution of the initial rupture (AGU Fall Meeting)
67.	2006/12	Small Slow-Strain Steps and Their Forerunners Observed in Gold Mine, South Africa (AGU Fall Meeting)
68.	2006/12	Temporal changes in strain rate tensor near the 2000 Western Tottori Earthquake fault (AGU Fall Meeting)
69.	2005/12	Features of Initial Rupture for the 2005 West off Fukuoka Prefecture Earthquake<BR> (AGU Fall Meeting)