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REDPy Catalogs for Mauna Loa (2012-2024)

Metadata Updated: January 22, 2026

REDPy (short for Repeating Earthquake Detector in Python) is a seismic tool for automatically detecting and grouping earthquakes based on the similarity of their waveforms into "families" of related events. It can be used in near real-time for monitoring or for research. The catalogs in this release bracket the late-2022 eruption of Mauna Loa, Island of Hawaiʻi; two separate catalogs are provided for different uses. The REDPy "Canonical" Catalog spans from 2012-01-01 to 2024-01-01 (UTC). Early 2012 is the start of openly available data from the "HV" network archived in the NSF SAGE Facility (https://service.iris.edu/). Waveforms from the vertical components of six seismometers near the summit of Mauna Loa (i.e., ALEP, MOKD, WILD, SWRD, TRAD, and DAND) were downloaded and filtered from 1 to 10 Hz. Triggers were created at the time of known local earthquakes or when four of the six stations exceed the default threshold for the STA/LTA triggering algorithm. Events were considered part of a family if they cross-correlate above 0.7 with at least one other member of the family on at least three of the six stations. This catalog most closely resembles the configuration that was used for near real-time monitoring in the lead-up to the eruption, but has been processed for reproducibility. The REDPy "HF" (Higher Frequency) Catalog spans from 2022-01-01 to 2023-01-01 (UTC). Apart from the shorter time span, the fundamental difference from the "Canonical" catalog is that the waveforms were filtered from 5 to 15 Hz after download. During the eruption, volcanic tremor dominated the recorded seismograms from 1 to 5 Hz, and this setting aimed to filter that out and allow discrete earthquakes to trigger during the eruption. The ~11 months of time prior to the eruption are included for comparison with the "Canonical" catalog. This release contains the inputs and commands used to generate the catalogs, as well as both the text catalogs and interactive outputs. See README.txt for further documentation.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date January 12, 2026
Metadata Updated Date January 22, 2026

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date January 12, 2026
Metadata Updated Date January 22, 2026
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/USGS_669aa0bcd34e9ac16e1675dd
Data Last Modified 2025-01-07T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20260122015221
Harvest Object Id 0f831551-8c59-41f6-88d3-178308459917
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
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Source Datajson Identifier True
Source Hash fdd7a6d88090520252599f5af89fb23aae1682b448080bfcd730df20ef7a7fd3
Source Schema Version 1.1
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