One-stop Shop for Borehole Seismology

Advanced Seismic Instrumentation & Research

ASIR designs and manufactures borehole seismic instrumentation for earthquake monitoring, induced seismicity studies, geothermal projects, mining, CO₂ storage, and scientific research. Our expertise spans the complete project lifecycle—from sensor development and manufacturing to network design, installation, maintenance, and seismic data analysis.

ASIR develops borehole seismic instruments ranging from compact posthole geophones to broadband optical accelerometers and hybrid six-component systems.

Our instruments are deployed worldwide for earthquake monitoring, induced seismicity, geothermal reservoirs, mining, carbon storage, and academic research.

Standard products are complemented by custom-designed sondes for deep boreholes, high-temperature environments, and specialized monitoring applications.

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successfully deployed borehole stations

Products

We offer a wide range of standard and specialized seismic borehole instruments, covering the entire earthquake frequency spectrum.

Our advanced sensors are used for monitoring and managing geothermal plants, CO₂ sequestration sites, waste disposal facilities, and unconventional reservoirs.

For more demanding applications, we also provide custom deep-borehole solutions and high-temperature sondes tailored to specific operational requirements.

AF2

Posthole | 2 Hz | 3° Tilt

AF2
 AG2

Borehole | 2 Hz | 15° Tilt

AG2
 AF4.5

Posthole | 4.5 Hz | 3° Tilt

AF4.5
 AG4.5

Borehole | 4.5 Hz | 15° Tilt

AG4.5
 AF15

Borehole | 15 Hz | Omni Tilt

AF15
 ABB

Borehole | Broadband | 15° Tilt

ABB
 ABBT

Borehole | Broadband | 15° Tilt

ABBT
 AFB4.5

Borehole | Fullband | 15° Tilt

AFB4.5

Our Services

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Scientific Publications

2020 - Hillers, G., Vuorinen, T., Uski, M., Kortström, J., Mäntyniemi, P., Tiira, T., Malin, P., Saarno, T.: The 2018 Geothermal Reservoir Stimulation in Espoo/Helsinki, Southern Finland: Seismic Network Anatomy and Data Features. Seismological Research Letters, 91 (2A): 770–786. DOI: 10.1785/0220190253

2020 - Hofstetter, R., Malin, P., Ben-Avraham, Z.: Seismic Observations of Microearthquakes from the Masada Deep Borehole. Seismological Research Letters, 91 (4): 2298–2309. DOI: 10.1785/0220190391

2020 - Leary, P., Malin, P., Saunders, G., Sicking, C.: Seismic Imaging of Convective Geothermal Flow Systems to Increase Well Productivity. Journal of Energy and Power Technology, 2(3):28. DOI: 10.21926/jept.2003012

2020 - Malin, P., Leary, P., Cathles, L. M., Barton, C. C.: Observational and Critical State Physics Descriptions of Long-Range Flow Structures. Geosciences, 10, 50. DOI: 10.3390/geosciences10020050

2019 - Ader, T., Chendorain, M., Free, M., Saarno, T., Heikkinen, P., Malin, P., Leary, P., Kwiatek, G., Dresen, G., Blümle, F., Vuorinen, T.: Design and Implementation of a Traffic Light System for Deep Geothermal Well Stimulation in Finland. Journal of Seismology. DOI: 10.1007/s10950-019-09853-y

2019 - Kwiatek, G., Saarno, T., Ader, T., Blümle, F., Bohnhoff, M., Chendorain, M., Dresen, G., Heikkinen, P., Kukkonen, I., Leary, P., Leonhardt, M., Malin, P., Martínez-Garzón, P., Passmore, K., Passmore, P., Valenzuela, S., Wollin, C.: Controlling Fluid-Induced Seismicity During a 6.1-km-Deep Geothermal Stimulation in Finland. Science Advances, 5 (5). DOI: 10.1126/sciadv.aav7224

2019 - Malin, P., Kwiatek, G., Dresen, G., Saarno, T.: Near-Real-Time Management of Induced Seismicity During an EGS Stimulation. SEG Technical Program Expanded Abstracts: 2079-2083. DOI: 10.1190/segam2019-3214180.1

2019 - Sicking, C., Vermilye, J. M., Malin, P.: Fracture Seismic: Mapping Subsurface Connectivity. Geosciences, 9, 508. DOI: 10.3390/geosciences9120508

2018 – Bohnhoff, M., Malin, P., ter Heege, J., Deflandre, J.-P., Sicking, C.: Suggested Best Practice for Seismic Monitoring and Characterization of Non-Conventional Reservoirs. First Break, 36(2), pp. 59—64.

2018 – Malin, P., Bohnhoff, M., Blümle, F., Dresen, G., Martínez-Garzón, P., Nurlu, M., Ceken, U., Kadirioglu, F., Kartal, R., Kilic, T., Yanik, K.: Microearthquakes Preceding a M4.2 Earthquake Offshore Istanbul. Scientific Reports, 8, Article 16176. DOI: 10.1038/s41598-018-34563-9

2017 – Bohnhoff, M., Wollin, C., Domigall, D., Küperkoch, L., Martínez-Garzón, P., Kwiatek, G., Dresen, G., Malin, P.: Repeating Marmara Sea earthquakes: indication for fault creep. Geophysical Journal International, Volume 210, Issue 1, 1.7.2017, Pages 332–339, doi: 10.1093/gji/ggx169

2017 – Gulley, A., Eccles, J., Kaipio, J., Malin, P.: A numerical approach for fault zone guided waves. Geophysical Journal International, Volume 210, Issue 2, 1.8.2017, Pages 919–930, doi: 10.1093/gji/ggx199

2017 – Gulley, A., Eccles, J., Kaipio, J., Malin, P.: The effect of gradational velocities and anisotropy on fault-zone trapped waves. Geophysical Journal International, Volume 210, Issue 2, 1.8.2017, Pages 964–978, doi: 10.1093/gji/ggx200

2017 – Leary, P., Malin, P., Niemi, R.: Fluid Flow and Heat Transport Computation for Power-Law Scaling Poroperm Media. Geofluids, Volume 2017, Article ID 9687325, 12 pages, doi: 10.1155/2017/9687325

2017 - Leary, P.; Malin, P.; Saarno, T.; Kukkonen, I.: Prospects for Assessing Enhanced Geothermal System (EGS) Basement Rock Flow Stimulation by Wellbore Temperature Data. Energies, 10, 1979, doi: 10.3390/en10121979

2016 – Raub, C, Bohnhoff, M., Petrovic, B., Parolai, S., Malin, P., Yanik, K., Kartal, R., Kilic, T.: Seismic wave propagation in shallow layers at Tuzla GONAF site, Istanbul. Bulletin of the Seismological Society of America, Volume 106, Number 3, doi: 10.1785/0120150216

2015 – Boese, C, Wotherspoon, L., Alvarez, M., Malin, P.: Analysis of Anthropogenic and Natural Noise from Multilevel Borehole Seismometers in an Urban Environment, Auckland, New Zealand. Bulletin of the Seismological Society of America, Volume 105, Number 1, 285-299, doi: 10.1785/0120130288

2015 – Eccles, J., Gulley, A., Malin, P., Boese, C., Townend, J., Sutherland, R.: Fault Zone Guided Wave generation on the locked, late interseismic Alpine Fault, New Zealand. Geophys. Res. Lett., 42, 5736–5743, doi: 10.1002/2015GL064208

2015 – Prevedel, B., Bulut, F., Bohnhoff, M., Raub, C., Kartal, R., Alver, F., Malin, P.: Downhole geophysical observatories: best installation practices and a case history from Turkey, Int J Earth Sci (Geol Rundsch), doi: 10.1007/s00531-015-1147-5.

2015 – Zimakov, L., Passmore, P., Jackson, M., Raczka, J., Barrientos, S.: Field Installation & Real-Time Data Processing of the New Integrated SeismoGeodetic System with Real-Time Acceleration & Displacement Measurements for Earthquakes. Book of Abstracts, Comprehensive Test Ban Treaty Science & Technology Conf, Hofburg Palace, Vienna, Austria

2014 – Passmore, P., Jackson, M., Zimakov, L., Raczka, J., Davidson, P.: Integrated SeismoGeodetic System with High-Resolution, Real-Time GNSS & Accelerometer Observation For Earthquake Early Warning Application. Abs S32C-08, EOS Transactions of the American Geophysical Union, San Francisco Fall Meeting

2013 – Zimakov, L, Passmore, P., Golonka, S.: High-Resolution, Ultra Low Power, Integrated Aftershock & Microzonation System. Seismo. Res. Lett, v84/1 p139-161, doi: 10.1785/0220120178

2011 – Ashenden, C., Lindsay, J., Sherburn, S., Smith, I., Miller, C., Malin, P.: Challenges monitoring potentially active volcanic field in a large urban area: Auckland Volcanic Field, New Zealand. Natural Hazards Volume 59, Number 1, 507-528, doi: 10.1007/s11069-011-9773-0

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Worldwide Offices & Partners

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