Dr. ZI, Jinping (Hardy) ##################################### .. figure:: /figs/Photo-AGU_2023.jpg :width: 8 cm :height: 6 cm :align: center A photo during the American Geophysical Union (AGU) annual meeting 2023, San Francisco, USA. Introduction ======================================== I am a current **postdoc** in the `Seismology Lab `__ at **the Chinese University of Hong Kong** (CUHK). Before that, my experience was: ``2020-2024`` **PhD** in the Department of Earth & Atmospheric Sciences, CUHK, under the Hong Kong PhD Fellowship Scheme ``2017-2019`` **Marketing specialist** in tp-link Malaysia & tp-link Russia ``2014-2017`` **MS** in geology in the School of Earth Sciences and Engineering, Nanjing University, China ``2010-2014`` **BS** in geology in the College of Earth Sciences, Zhejiang University, China My researches incorporate seismology and geology to understand earthquake nucleation, fault behaviors, and induced earthquakes with improved strategies in high-resolution earthquake location. My current research area is the Weiyuan Shale Gas Field (WSGF) in the Sichuan Basin, China. In this website, I will share my research, codes, tutorials, and other knowledge. ======================================= Research highlights ======================================= Structural constraints on induced earthquakes in the Weiyuan Shale Gas Field (WSGF) ------------------------------------------------------------------------------------------- Body-wave tomography was conducted to invert for 3D P&S velocities in the WSGF. Using refined velocity models, we relocated the earthquakes and analyzed the structural constraints on induced earthquakes. (Zi et al., 2023 `Tectonophysics `__) .. figure:: /figs/main-WSGF_bg.png :align: center :width: 16 cm Background of the Weiyuan Shale Gas Field (WSGF) in the Sichuan Basin, China. Dense array seismicity monitoring in Weiyuan Shale Gas Field (WSGF) ---------------------------------------------------------------------------------------- We deployed a dense array consists of 247 seismometers in WSGF in 2022 to monitor the seismicity in the area. The mean inter-station distance is ~3 km. During the six months of deployment, we recorded several tens thousand of earthquakes and found that the aftershocks of the 2019 :math:`M_L` 5.6 earthquake persisted even after 3 years (Yang & Zi et al., 2025, Tectonophysics). .. figure:: /figs/main-WY2022.png :align: center :width: 16 cm The 2019 :math:`M_L` 5.6 earthquake and their aftershocks in 2022. The shaded zone in (b) represents the rupture area Nucleation of an :math:`M_L` 5.6 earthquake --------------------------------------------------------------------------- Using near-fault seismometers, I study 11-month precursory foreshocks, the 6 minute immediate foreshocks, and the seismic nucleation phase of the 2019 :math:`M_L` 5.6 earthquake in the WSGF to understand earthquake nucleation behaviors, which is the first time that foreshocks and seismic nucleation phase are observed in high-resolution (AGU 2024 :download:`poster `). .. figure:: /figs/main-nucleation.png :align: center :width: 16 cm Nucleation of the 2019 :math:`M_L` 5.6 earthquake in the WSGF. The immediate foreshocks are observed in high-resolution The 11-month precursory fault activation of the 2019 :math:`M_L` 5.6 earthquake in the WSGF ---------------------------------------------------------------------------------------------------- A long-term catalog (2015-2019) was produced and a 11-month precursory fault activation was observed prior to the deadly 2019 :math: `M_L` 5.6 Weiyuan earthquake triggered by hdraulic fracturing. The presence of the long activation window indicates observing precursory fault activation can be an effective way for hazard mitigation (Zi & Yang et al., 2025, `CEE `__) .. figure:: /figs/main-11_month.png :align: center :width: 16 cm Approaching foreshock front to the mainshock during the 11-month precursory fault activation. The python package ``seisloc`` -------------------------------------- I developed a python package ``seisloc`` to address earthquake location and associated data processing. It is designed in an object-oriented manner, which is easy to use and extend with substantial plot functions. It is still under development. .. figure:: /figs/main-seisloc.png :align: center :width: 16 cm Design of the python package ``seisloc`` in a object-oriented manner. ====================================== Community efforts ====================================== I am passionate about team collaboration and efficiency, and I have mode significant progress in fostering community development. Several contributions are listed below: **Paper review**: I served as a reviewer for Earh and Planetary Science Letters, Geophysical Journal of International, and Seismological Research Letters. **The GESS symposium**: We organized the 1st Greater Bay Area Earth & Environmental Sciences Young Scholars Symposium (GESS) to encourage scientific communications of Young Scholars from institutions in and around Hong Kong (role: coordinator, `more `__) **Time error solution**: I addressed the issue of unstable time drifting problems in seismometer data in China, diagnosing the cause and developing a solution to recover accurate data after trial for months. The progress was shared at the China Geoscience Unition Annual Meeting 2023 (:doc:`more `). **Hydraulic fracturing (HF) platforms in WSGF**: Locations of shale gas development platforms are essential but not available in the WSGF. By examining Google Earth images, approximately 140 HF platforms were identified. We further visited their sites to collect their names and fracking information. We shared collected dataset to the community in the supplementary of `Zi et al., 2023 `__ **Tutorials**: A series of tutorials were developed to guide readers in earthquake location and data processing. ====================================== Honours ====================================== - ``Outstanding students award``, The Chinese University of Hong Kong, 2024 - ``Best oral-presentation award``, Habitable Earth - Geoscience for Sustainability (conference), 2023 - ``The HongKong Ph.D. Fellowship Scheme``, 2020, The Chinese University of Hong Kong - ``Outstanding Worker - Class A``, 2018Q2, tp-link - ``Postgraduate scholarship - Class A``, 2014, Zhejiang University - ``National Endeavor Fellowship``, 2013, Zhejiang University ====================================== *Geological Review*, 63(4): 1040-1050(In Chinese with English Abstracts). ====================================== Fieldtrips ====================================== 1. Aug. 2022. Temporary seismometers deployment in the Weiyuan Shale Gas Field 2. May. 2021. Temporary seismometers deployment in the Weiyuan Shale Gas Field 3. Apr. 2020. Temporary seismometers deployment in the Weiyuan Shale Gas Field 4. Mar. 2017. Neoproterozoic dikes investigation in the western Sichuan Basin 5. May. 2016. Geomagnetic samples pick-up in the northern Sichuan Basin 6. Sept. 2015. Picking rock samples for paleomagnetisation and U-Pb chronology in the southwestern Sichuan Basin .. toctree:: :caption: About me :hidden: about_me/publication/index.rst about_me/smartphone/index.rst about_me/shop/index.rst .. toctree:: :caption: Research :hidden: research/ie/ie_intro/index research/ie/ie_mechanisms/index research/ie/ie_WSGF/index .. toctree:: :caption: Tutorials :hidden: code/tut/abs_loc/index.rst code/tut/rel_loc/index.rst code/tut/speed/index.rst code/tut/b_value/index.rst .. toctree:: :caption: Tools :hidden: code/tl/trav/index.rst code/tl/scc/index.rst code/tl/SEA_time_errors/index.rst .. toctree:: :caption: Knowledge :hidden: knowledge/index knowledge/sg/sg_intro/index knowledge/sg/sg_chronology/index knowledge/sg/sg_magnetism/index