screloc¶

Automatic relocator.

Description¶

screloc is an automatic relocator that receives origins from realtime locators such as scautoloc and relocates them with a configurable locator. screloc can be conveniently used to test different locators and velocity models or to relocate events with updated velocity models. Check the Example applications for screloc.

screloc processes any incoming automatic origin but does not yet listen to event information nor does it skip origins for that a more recent one exists.

To run screloc along with all processing modules add it to the list of clients in the seiscomp configuration frontend.

seiscomp enable screloc
seiscomp start screloc

Descriptions of parameters for screloc:

seiscomp exec screloc -h

Test the performance of screloc and learn from debug output:

seiscomp exec screloc --debug

Setup¶

The following example configuration shows a setup of screloc for NonLinLoc:

plugins = ${plugins}, locnll

# Define the locator algorithm to use
reloc.locator = NonLinLoc

# Define a suffix appended to the publicID of the origin to be relocated
# to form the new publicID.
# This helps to identify pairs of origins before and after relocation.
# However, new publicIDs are unrelated to the time of creation.
# If not defined, a new publicID will be generated automatically.
reloc.originIDSuffix = "#relocated"

########################################################
################ NonLinLoc configuration################
########################################################
NLLROOT = ${HOME}/nll/data

NonLinLoc.outputPath = ${NLLROOT}/output/

# Define the default control file if no profile specific
# control file is defined.
NonLinLoc.controlFile = ${NLLROOT}/NLL.default.conf

# Set the default pick error in seconds passed to NonLinLoc
# if no SeisComP pick uncertainty is available.
NonLinLoc.defaultPickError = 0.1

# Define the available NonLinLoc location profiles. The order
# implicitly defines the priority for overlapping regions
#NonLinLoc.profiles = swiss_3d, swiss_1d, global
NonLinLoc.profiles = swiss_3d, global

# The earthModelID is copied to earthModelID attribute of the
# resulting origin
NonLinLoc.profile.swiss_1d.earthModelID = "swiss regional 1D"

# Specify the velocity model table path as used by NonLinLoc
NonLinLoc.profile.swiss_1d.tablePath = ${NLLROOT}/time_1d_regio/regio

# Specify the region valid for this profile
NonLinLoc.profile.swiss_1d.region = 41.2, 3.8, 50.1, 16.8

# The NonLinLoc default control file to use for this profile
NonLinLoc.profile.swiss_1d.controlFile = ${NLLROOT}/NLL.swiss_1d.conf

# Configure the swiss_3d profile
NonLinLoc.profile.swiss_3d.earthModelID = "swiss regional 3D"
NonLinLoc.profile.swiss_3d.tablePath = ${NLLROOT}/time_3d/ch
NonLinLoc.profile.swiss_3d.region = 45.15, 5.7, 48.3, 11.0
NonLinLoc.profile.swiss_3d.controlFile = ${NLLROOT}/NLL.swiss_3d.conf

# And the global profile
NonLinLoc.profile.global.earthModelID = iaspei91
NonLinLoc.profile.global.tablePath = ${NLLROOT}/iasp91/iasp91
NonLinLoc.profile.global.controlFile = ${NLLROOT}/NLL.global.conf

Examples¶

Relocate all origins given in an SCML file according to the configuration of screloc. Write all output to unformatted SCML.
```
screloc -d localhost --ep origins.xml > origins_screloc.xml
```

Relocate the previously preferred origins of all events (scevtls) within some period of time using a specific locator and locator profile. Use some userID and authorID for uniquely recognizing the relocation. Configuring the ref:scevent parameter eventAssociation.priorities to TIME_AUTOMATIC before running the example will prefer the latest origin (which will be created by screloc) for the event the new origin is associated to. The new origins are automatically sent to the messaging.

#!/bin/bash

# locator type
locator=[your_locator]
# locator profile
profile=[your_profile]
# set some userID
userID=[your_user]
# set some authorID
authorID=[screloc]

IFS=',' read -ra events <<< `scevtls -d localhost -p -D , --begin 2025-01-01 --end 2025-02-01`
for event in "${events[@]}"; do
    preferredOrigin=$(echo $event | awk '{print $2}')
    screloc -d localhost -O $preferredOrigin --locator $locator --profile $profile -u $userID --author=$authorID
done

Module Configuration¶

etc/defaults/global.cfg
etc/defaults/screloc.cfg
etc/global.cfg
etc/screloc.cfg
~/.seiscomp/global.cfg
~/.seiscomp/screloc.cfg

screloc inherits global options.

reloc.locator¶

Type: string

Defines the locator to be used such as NonLinLoc.

reloc.profile¶

Type: string

The locator profile to use.

reloc.ignoreRejectedOrigins¶

Default: false

Type: boolean

Ignores origins with status REJECTED.

reloc.allowAnyStatus¶

Default: false

Type: boolean

Triggers processing on origins with any evaluation status. Overrides "allowPreliminaryOrigins" but not "ignoreRejectedOrigins".

reloc.allowPreliminaryOrigins¶

Default: false

Type: boolean

Triggers processing also on origins with status PRELIMINARY. Origins with any other status is ignored anyway. The parameter is overridden by "allowAnyStatus".

reloc.allowManualOrigins¶

Default: false

Type: boolean

Triggers processing also on origins with evaluatuion mode MANUAL. Otherwise only origins with mode AUTOMATIC are considered. The triggering may be limited due to an evaluation status, see "allowPreliminaryOrigins".

reloc.useWeight¶

Default: false

Type: boolean

Whether to use the weight of the picks associated with the input origin as defined in the input origin as input for the locator or not. If false then all picks associated with the input origin will be forwarded to the locator with full weight.

reloc.adoptFixedDepth¶

Default: false

Type: boolean

If the input origin’s depth is fixed then it will be fixed during the relocation process as well.

reloc.storeSourceOriginID¶

Default: false

Type: boolean

Whether to store the ID of the input origin as comment in the relocated origin or not.

reloc.originIDSuffix¶

Type: string

Suffix appended to the publicID of the origin to be relocated to form the new publicID. This helps to identify pairs of origins before and after relocation. However, new publicIDs are unrelated to the time of creation. If not defined, a new publicID will be generated automatically.

Note

picks.* Parameters specific to picks.

picks.streamsSetUnused¶

Type: list:string

List of streams from which picks are set to unsed by their referencing arrivals before locating. The concerned arrivals are kept but the picks will not be used for locating. Streams take the format NET.STA.LOC.CHA. Wildcards * and ? are supported.

Example:

GE.MOX.*.HH? : All arrivals on any HH stream of station MOX will be kept but not used for locating.

Command-Line Options¶

Generic¶

-h, --help¶: Show help message.

-V, --version¶: Show version information.

--config-file arg¶: Use alternative configuration file. When this option is used the loading of all stages is disabled. Only the given configuration file is parsed and used. To use another name for the configuration create a symbolic link of the application or copy it. Example: scautopick -> scautopick2.

--plugins arg¶: Load given plugins.

-D, --daemon¶: Run as daemon. This means the application will fork itself and doesn’t need to be started with &.

--auto-shutdown arg¶: Enable/disable self-shutdown because a master module shutdown. This only works when messaging is enabled and the master module sends a shutdown message (enabled with --start-stop-msg for the master module).

--shutdown-master-module arg¶: Set the name of the master-module used for auto-shutdown. This is the application name of the module actually started. If symlinks are used, then it is the name of the symlinked application.

--shutdown-master-username arg¶: Set the name of the master-username of the messaging used for auto-shutdown. If "shutdown-master-module" is given as well, this parameter is ignored.

Verbosity¶

--verbosity arg¶: Verbosity level [0..4]. 0:quiet, 1:error, 2:warning, 3:info, 4:debug.

-v, --v¶: Increase verbosity level (may be repeated, eg. -vv).

-q, --quiet¶: Quiet mode: no logging output.

--component arg¶: Limit the logging to a certain component. This option can be given more than once.

-s, --syslog¶: Use syslog logging backend. The output usually goes to /var/lib/messages.

-l, --lockfile arg¶: Path to lock file.

--console arg¶: Send log output to stdout.

--debug¶: Execute in debug mode. Equivalent to --verbosity=4 --console=1 .

--log-file arg¶: Use alternative log file.

Messaging¶

-u, --user arg¶: Overrides configuration parameter connection.username.

-H, --host arg¶: Overrides configuration parameter connection.server.

-t, --timeout arg¶: Overrides configuration parameter connection.timeout.

-g, --primary-group arg¶: Overrides configuration parameter connection.primaryGroup.

-S, --subscribe-group arg¶: A group to subscribe to. This option can be given more than once.

--content-type arg¶

Overrides configuration parameter connection.contentType.

Default: binary

--start-stop-msg arg¶

Default: 0

Set sending of a start and a stop message.

Database¶

--db-driver-list¶: List all supported database drivers.

-d, --database arg¶: The database connection string, format: service://user:pwd@host/database. "service" is the name of the database driver which can be queried with "--db-driver-list".

--config-module arg¶: The config module to use.

--inventory-db arg¶: Load the inventory from the given database or file, format: [service://]location .

--db-disable¶: Do not use the database at all

Mode¶

--dump¶: Dump processed origins as XML to stdout. Use in combination with -O.

--test¶: Test mode, do not send any message.

Input¶

--locator arg¶: Overrides configuration parameter reloc.locator.

--profile arg¶: Overrides configuration parameter reloc.profile.

--ep arg¶: Event parameters XML file for offline processing of all contained origins. This option should not be mixed with --dump.

-O, --origin-id arg¶: Reprocess the origin and send a message unless test mode is activated.

--use-weight¶: Overrides configuration parameter reloc.useWeight.

--streams-set-unused arg¶

Overrides configuration parameter picks.streamsSetUnused.

Type: list:string

--replace¶: Used in combination with --ep. If given then each origin for that an output has been generated is replaced by the result of relocation. In other words: two LocSAT origins in, two NonLinLoc origins out. All other objects are passed through.

Output¶

--evaluation-mode¶: Evaluation mode of the new origin (AUTOMATIC or MANUAL).

-f, --formatted¶: Use formatted XML output. Otherwise XML is unformatted.

--origin-id-suffix¶: Create origin ID from that of the input origin plus the specfied suffix.

Profiling¶

--measure-relocation-time¶: Measure the time spent in a single relocation

--repeated-relocations arg¶: Improve measurement of relocation time by running each relocation multiple times. Specify the number of relocations, e.g. 100.

screloc¶

Description¶

Setup¶

Examples¶

Module Configuration¶

Command-Line Options¶

Generic¶

Verbosity¶

Messaging¶

Database¶

Mode¶

Input¶

Output¶

Profiling¶

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