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


Last updated on Fri Oct 18 04:44:30 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 = 1):

    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
    429200131 2024/10/18 03:59:5.840 45.94852 -129.98528 1.463 0.30 1 0.14 1A.3 tech 3D waves
    429200128 2024/10/18 03:51:45.610 45.93440 -129.99116 0.046 -0.10 2 0.45 1A.3 tech 3D waves
    429200127 2024/10/18 03:43:51.070 45.94270 -129.99190 1.170 -0.00 - - 1A.0 tech 3D waves
    429200126 2024/10/18 03:41:53.210 45.95387 -129.99766 0.491 0.30 1 0.09 1A.3 tech 3D waves
    429200125 2024/10/18 03:39:20.750 45.92605 -129.99240 0.130 0.20 2 0.32 1A.3 tech 3D waves
    429200123 2024/10/18 03:30:13.040 45.94334 -129.96484 1.825 -0.10 1 0.79 1A.3 tech 3D waves
    429200119 2024/10/18 03:27:27.580 45.94388 -129.98088 1.519 0.30 1 0.11 1A.3 tech 3D waves
    429200116 2024/10/18 03:27:2.750 45.94404 -129.98087 1.465 0.10 2 0.25 1A.3 tech 3D waves
    429200113 2024/10/18 03:26:7.130 45.96278 -129.94809 4.359 0.20 2 0.79 1A.3 tech 3D waves
    429200110 2024/10/18 03:21:44.270 45.92749 -129.98230 0.792 -0.00 2 0.25 1A.3 tech 3D waves
    429200108 2024/10/18 03:05:39.870 45.94620 -129.99020 0.395 -0.10 2 0.18 1A.3 tech 3D waves
    429200107 2024/10/18 03:03:44.440 45.90799 -129.94866 1.278 0.20 2 3.79 1A.3 tech 3D waves
    429200103 2024/10/18 03:00:38.050 45.92347 -129.97740 1.234 0.30 2 0.86 1A.3 tech 3D waves
    429200104 2024/10/18 03:00:37.990 45.92261 -129.97699 1.520 0.20 2 1.18 1A.3 tech 3D waves
    429200099 2024/10/18 02:50:49.550 45.94425 -130.02092 1.027 0.20 2 0.57 1A.3 tech 3D waves
    429200096 2024/10/18 02:47:16.200 45.84499 -129.98020 0.010 0.50 2 9.45 1A.3 tech 3D waves
    429200095 2024/10/18 02:47:14.610 45.95326 -129.98789 1.478 0.40 2 0.41 1A.3 tech 3D waves
    429200094 2024/10/18 02:43:19.280 45.94862 -129.98660 1.610 0.20 2 0.10 1A.3 tech 3D waves
    429200088 2024/10/18 02:37:13.590 45.92363 -130.00212 1.004 0.20 2 0.55 1A.3 tech 3D waves
    429200087 2024/10/18 02:36:22.380 45.91202 -129.92956 0.438 0.60 2 3.14 1A.3 tech 3D waves

    Events last re/processed:
    429200104 2024/10/18 03:00:37.990 45.92261 -129.97699 1.520 0.20 2 1.18 1A.3 tech 3D waves
    429200107 2024/10/18 03:03:44.440 45.90799 -129.94866 1.278 0.20 2 3.79 1A.3 tech 3D waves
    429200108 2024/10/18 03:05:39.870 45.94620 -129.99020 0.395 -0.10 2 0.18 1A.3 tech 3D waves
    429200110 2024/10/18 03:21:44.270 45.92749 -129.98230 0.792 -0.00 2 0.25 1A.3 tech 3D waves
    429200113 2024/10/18 03:26:7.130 45.96278 -129.94809 4.359 0.20 2 0.79 1A.3 tech 3D waves
    429200116 2024/10/18 03:27:2.750 45.94404 -129.98087 1.465 0.10 2 0.25 1A.3 tech 3D waves
    429200119 2024/10/18 03:27:27.580 45.94388 -129.98088 1.519 0.30 1 0.11 1A.3 tech 3D waves
    429200123 2024/10/18 03:30:13.040 45.94334 -129.96484 1.825 -0.10 1 0.79 1A.3 tech 3D waves
    429200125 2024/10/18 03:39:20.750 45.92605 -129.99240 0.130 0.20 2 0.32 1A.3 tech 3D waves
    429200126 2024/10/18 03:41:53.210 45.95387 -129.99766 0.491 0.30 1 0.09 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).