Real-Time, High-Precision, Deep Magnitude Earthquake Catalog for Axial Seamount
Combining machine learning, cross-correlation and double-difference algorithms


Last updated on Thu Nov 21 11:52:43 UTC 2024

About: This website displays near-real-time, machine-learning based, double-difference hypocenter locations for earthquakes recorded by the Ocean Observatories Initiative (OOI) cabled OBS array at Axial Seamount. The continuous waveform data is processed using machine-learning methods for detection, phase arrival-time picking, and association. New events are then located relative to a high-resolution background (base) catalog using waveform cross-correlation and double-differences. For more details see here.
Precursory mixed frequency earthquakes (MFEs; blue squares in figure), lava flow events, and whale calls are also monitored, using unsupervised ML.
This web site is updated every 10 minutes.

Archived DDRT solutions:
2022: 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12
2023: 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12
2024: 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12

Downloads:
  • ML-DD real-time catalog, Jan 2022 - present
  • ML-DD base catalog, 2014-2021
  • For the machine-learning based single-event location catalog before DD relocation click here.
  • Search catalogs here.

  • Most recent events (events in queue = 0):

    Q: Solution quality DX: Shift between DD and network location (km); V: version (SE.DD)
    If Q='-': No DDRT solution computed.
    tech: technical information; 3D: 3D viewer; waves: wave plots; USGS: USGS event page

    ID DATE TIME (UTC) LAT LON DEPTH ML Q DX V
    432600245 2024/11/21 10:00:51.260 45.94364 -129.98988 0.162 0.30 1 0.36 1A.3 tech 3D waves
    432600239 2024/11/21 09:44:4.700 45.94273 -129.98561 1.237 0.30 1 0.42 1A.3 tech 3D waves
    432600230 2024/11/21 09:38:45.660 45.94251 -129.98873 0.482 0.90 1 0.16 1A.3 tech 3D waves
    432600226 2024/11/21 09:35:53.670 45.94416 -129.98856 0.937 0.20 1 0.28 1A.3 tech 3D waves
    432600221 2024/11/21 09:29:23.890 45.94258 -129.98852 0.513 0.50 1 0.17 1A.3 tech 3D waves
    432600215 2024/11/21 09:16:18.410 45.93822 -130.01988 1.244 0.60 1 0.52 1A.3 tech 3D waves
    432600207 2024/11/21 08:45:28.010 45.93198 -129.97376 1.971 0.40 1 0.24 1A.3 tech 3D waves
    432600205 2024/11/21 08:44:18.090 45.94540 -129.99580 0.480 0.60 - - 1A.0 tech 3D waves
    432600195 2024/11/21 08:10:7.710 45.94973 -129.99516 0.153 0.50 1 0.21 1A.3 tech 3D waves
    432600197 2024/11/21 08:10:23.780 45.95971 -129.99160 1.506 0.30 2 0.39 1A.3 tech 3D waves
    432600186 2024/11/21 08:06:25.480 45.93560 -130.02035 1.478 0.20 2 0.34 1A.3 tech 3D waves
    432600178 2024/11/21 08:03:7.040 45.97086 -129.98825 1.529 0.70 2 1.07 1A.3 tech 3D waves
    432600180 2024/11/21 08:03:48.810 45.93899 -129.97879 0.067 0.20 2 0.36 1A.3 tech 3D waves
    432600179 2024/11/21 08:03:38.480 45.94896 -129.99526 0.316 0.20 2 0.11 1A.3 tech 3D waves
    432600177 2024/11/21 08:02:58.300 45.96414 -129.97347 0.195 0.90 2 1.79 1A.3 tech 3D waves
    432600174 2024/11/21 08:01:38.960 45.93536 -130.02016 1.403 0.90 1 0.17 1A.3 tech 3D waves
    432600172 2024/11/21 08:01:26.180 45.94204 -130.01782 1.127 0.20 2 0.75 1A.3 tech 3D waves
    432600171 2024/11/21 08:01:22.080 45.93048 -130.00429 0.161 0.30 2 0.13 1A.3 tech 3D waves
    432600168 2024/11/21 07:59:55.420 45.94049 -130.00780 0.270 0.80 2 0.95 1A.3 tech 3D waves
    432600167 2024/11/21 07:59:51.600 45.93559 -130.02028 1.436 0.90 1 0.07 1A.3 tech 3D waves

    Events last re/processed:
    432600245 2024/11/21 10:00:51.260 45.94364 -129.98988 0.162 0.30 1 0.36 1A.3 tech 3D waves
    432600215 2024/11/21 09:16:18.410 45.93822 -130.01988 1.244 0.60 1 0.52 1A.3 tech 3D waves
    432600221 2024/11/21 09:29:23.890 45.94258 -129.98852 0.513 0.50 1 0.17 1A.3 tech 3D waves
    432600226 2024/11/21 09:35:53.670 45.94416 -129.98856 0.937 0.20 1 0.28 1A.3 tech 3D waves
    432600230 2024/11/21 09:38:45.660 45.94251 -129.98873 0.482 0.90 1 0.16 1A.3 tech 3D waves
    432600239 2024/11/21 09:44:4.700 45.94273 -129.98561 1.237 0.30 1 0.42 1A.3 tech 3D waves
    432600174 2024/11/21 08:01:38.960 45.93536 -130.02016 1.403 0.90 1 0.17 1A.3 tech 3D waves
    432600177 2024/11/21 08:02:58.300 45.96414 -129.97347 0.195 0.90 2 1.79 1A.3 tech 3D waves
    432600178 2024/11/21 08:03:7.040 45.97086 -129.98825 1.529 0.70 2 1.07 1A.3 tech 3D waves
    432600179 2024/11/21 08:03:38.480 45.94896 -129.99526 0.316 0.20 2 0.11 1A.3 tech 3D waves


    ____________________________________________________________________________________________________
    Data sources: Ocean Observatories Initiative (OOI), Incorporated Research Institutions for Seismology (IRIS)
    Project funded by NSF award OCE-1536320.
    Monitoring system and website developed and maintained at the Lamont-Doherty Earth Observatory of
    Columbia University.
    Contact: Felix Waldhauser (felixw@ldeo.columbia.edu) and Kaiwen Wang (kw2988@columbia.edu).