Requake Changelog

Copyright (c) 2021-2026 Claudio Satriano satriano@ipgp.fr

0.8.2 - 2026-06-03

Note: you might want to run requake update_config to update your config file to the latest version.

  • Parallel processing of earthquake pairs in scan_catalog. On by default with automatic detection of the number of worker processes. This can be configured with the catalog_scan_nprocs config option.

0.8.1 - 2026-05-31

  • Slimmed-down DB size by optimizing event_pairs storage. This allows storing also invalid pairs, so that resuming catalog scan is faster.

  • Dramatic speedup of event pairs building by using a KD-tree spatial index and approximate geodetic distance calculations.

  • Dramatic speedup of waveform fetching by improving the caching mechanism. A new config option catalog_waveform_cache_size allows to set the maximum number of waveforms to cache.

  • Dramatically faster reading of event pairs with cross-correlation filters in large catalogs, thanks to the new SQLite-backed storage.

  • Add an optional disk cache, through the catalog_waveform_disk_cache_enabled config option.

  • scan_catalog: when running as a batch job, log a progress report every minute, instead of showing the progress bar.

  • scan_catalog: if event pairs already exist in the database, ask whether to overwrite or continue from an interrupted run. Add --force to restart from scratch and --force-continue (short -c) to resume without prompting.

  • print_families: add horizontal and vertical distance min/max values to both summary and detailed (-d) outputs.

  • print_families: add -f stats output format for summary family statistics.

0.8 - 2026-05-22

This release introduces a major storage change.

Requake now stores scan-related data (catalog, event pairs, and families) in a SQLite database instead of CSV files. This improves storage efficiency and data access performance, especially for large catalogs.

This change is not backward compatible at the data format level. The high-level behavior of the command-line interface remains unchanged.

Note: further improvements based on this new storage system will be introduced throughout the 0.8.x release series.

0.7.3 - 2026-04-14

This release is intended to validate the new release workflow. It introduces no new features or bug fixes.

0.7.2 - 2026-04-13

This release is intended to validate the new release workflow. It introduces no new features or bug fixes.

0.7.1 - 2026-04-13

This release is intended to validate the new release workflow. It introduces no new features or bug fixes.

0.7 - 2026-04-10

This version requires at least Python 3.9.

Note: you might want to run requake update_config to update your config file to the latest version.

  • New option --shorterthan to select families with a duration shorter than a given value. For this option and for --longerthan it is now possible to specify the duration in seconds, minutes, hours, or months, in addition to days and years.

  • New option --colorby for many plot commands, to color families by a specific attribute other than the family number

  • New option --colormap for many plot commands, to select a colormap for coloring families. If not specified, a default colormap for each attribute specified in --colorby is used.

  • New option --range to manually specify the range of values for the color scale

  • New option --force for commands that write files, to overwrite existing files without asking

  • New option --freq_band for trace plotting commands, to override the frequency band specified in the config file

  • New option --detailed for print_families, to print more detailed information about each family, including the list of events

  • New option --output to save plots to files instead of showing them on screen

  • Config option waveform_data_path renamed to sds_data_path

  • New config option event_data_path to specify the path to a local directory with waveform files organized per event

  • Add missing street map style for map_families

  • Catalog scan: when more than a station is provided and the closest station to the event is not available, use the next closest station instead.

  • Catalog scan: accurate estimation of the number of event pairs to process

  • Initial support for plotting families found with template scan

  • Improved reading of CSV catalog files:

    • avoid duplicated column guessing

    • ensure that prefectly matching column field names are correctly guessed

    • warn if an invalid time format is found

  • Colored terminal output for warnings and errors

0.6 - 2024-05-04

Note: you might want to run requake update_config to update your config file to the latest version.

  • Verb plot_slip renamed to plot_cumulative. This new verb has new options to plot cumulative slip, cumulative moment, and cumulative number of events, and to make the plot logarithmic.

  • New verb print_catalog: print the event catalog to screen

  • New verb print_pairs: print the event pairs to screen

  • print_families: also print minimum and maximum family magnitudes

  • Additional models to convert magnitude to slip. Currently supported models are: Nadeau and Johnson (1998), Beeler et al. (2001), Eshelby (1957). Model selection is done using the mag_to_slip_model config parameter.

  • New verb update_config: update an existing config file to the latest version

0.5 - 2024-04-23

  • New config options: station_metadata_path and waveform_data_path to read station metadata and waveform data from files. Supports any metadata format supported by ObsPy and SDS (SeisComp Data Structure) waveform archives.

  • Filter catalog files on reading using the criteria in the config file

  • Improved time axes in plot_timespans and plot_slip for short time intervals

  • print_families: autoset duration units based on the average duration

  • plot_timespans: default sorting changed to family_number

0.4.1 - 2024-03-11

  • Bugfix: requake executable was not installed

0.4 - 2024-03-11

  • Package license changed to GPL-3.0 or later

  • New verb: read_catalog: read a catalog from web services or from a file (FDSN text, QuakeML, or CSV)

  • New verb: scan_templates: scan a continuous waveform stream using one or more templates. Templates can be from families or from file

  • New verb: print_families: print families to screen

  • New verb: plot_slip: plot cumulative slip for one or more families

  • New config parameter: clustering_algorithm to select the algorithm for building event families. Currently supported options are shared and UPGMA (default: shared)

  • family_numbers argument is no more mandatory (default: all)

    • argument added to map_families and plot_timespans

  • Config parameter trace_average_from_normalized_traces renamed to normalize_traces_before_averaging

  • plot_timespans: possibility to sort by family_number

  • New options for map_families to select a map style and a zoom level for the map tiles

  • New option --minevents (-m) for many verbs, to select families with a minimum number of events

  • Support for events with no location

  • Bugfix: plot_timespans: correctly plot x time axis when sort by time

0.3 - 2021-11-08

  • New verb: build_templates

  • New option: cc_allow_negative to search for anticorrelated events

  • New progressbar, using tqdm

  • plot_families:

    • show average trace

    • pan/zoom traces using arrows

    • show/hide theoretical arrivals using ‘a’ (command line option removed)

    • show event origin time as y-label

    • show trace mean CC

    • also shift theoretical arrivals when aligning traces

  • Bugfix: last family was not read from family file

0.2 - 2021-09-24

Mostly a bugfix release with a slightly improved trace plotting.

  • Bugfix: scan_catalog could not run properly due to missing variable

  • Bugfix: detrend traces before filtering

  • plot_families: print number of events and station-event distance

0.1 - 2021-09-16

  • Initial release, not yet feature complete