scmv

Map view.

Description

scmv visualizes the actual information regarding earthquakes, trigger status, ground motion and station quality. This information is visualized in a map showing also the topography of the region including bathymetry, state borders and geologic faults. scmv provides two different tabs with maps showing the ground motion and the network status.

Ground motion status

The ground motion tab (fig. Ground motion tab) shows the actual groundmotion in nm/s at each station color-coded. Furthermore the trigger status (new picks) of the stations are announced by blinking triangles (the same in all other tabs). In case a new pick is associated to an event, the blinking color changes from red to green (default). Events are represented by open circles and the depth is color-coded. By right mouse click on the symbol of a station more detailed information are shown in an information widget (fig. Station information widget).

../_images/ground-motion.png

Ground motion tab

Tab 1-2 = Ground Motion, Network Status tab; Station A = station with ground motion between 0 and 200 nm/s; Station B = triggering (red blinking) station; Station C = station of undefined status; Station D = triggering and associated station (green blinking); EQ = location of the earthquake/event; P = spreading of the P-wave; S = spreading of the S-wave; Legend = ground motion scale.

Network status

The network status tab (fig. Network status tab) visualizes the quality control parameters of all shown stations. The colors of the triangles represent the data the selected parameters of a station, e.g. latency or delay. More detailed information about station quality can be derived by opening an information widget (fig. Station information widget left) with a right mouse click on the symbol.

../_images/netstat.png

Network status tab

Station A = station with up to 20 sec data latency/delay; Station B = station with up to 10 min data latency/delay and a warning; Station C = disabled station; EQ = location of a recent or historic earthquake/event; Legend = scale of the delay; Status = connection status.

The visualized QC parameters can be selected in the QC parameters widget of scmv.

../_images/qc-selection.png

QC parameters selection widget

The station information widget opens by right mouse click on a station symbol in one of the scmv maps. The widget gives a more detailed list of parameters. For a station general information (coordinates, network code etc.), quality parameter (latency, gaps etc.), amplitude information and the actual waveform data are provided. For an event information like the location, the number of stations and the azimuthal gap are shown.

../_images/infowidget-station.png

Station information widget

The info widget of a station shows station information like network code and location. The quality of the station can be checked here. The lower part shows the last 15 minutes of waveforms including picks (if available).

Event information

In addition to the current event scmv also shows all events it has currently saved in its session as circles. This depends on the configured time span it remembers events. Showing the events can give a convenient overview of the network activity. If available focal mechanisms are displayed with dashed lines connecting to their location. The circles and focal mechanisms are again colored by their depth and sized by magnitude.

../_images/historic-origins.png

Show historic origins

All historic origins currently saved in scmv are shown as circles.

The events shown an the map can be confined by selecting the mode and the status of preferred origins in the event selection widget.

../_images/event-selection.png

Event selection widget

The event information widget opens by right mouse click on an event symbol. It shows event details. Clicking on the “Show Details” button allows to open the preferred origin of the event in other GUIs such as in scolv.

../_images/event-info.png

Event information widget

Hotkeys

Hotkey

Description

F2

Setup connection dialog

F3

Toggle ray paths and associated stations

F6

Hide propagation of P and S waves

F7

Toggle legend

F8

Toggle historic origins

F9

Toggle station annotation

F10

Toggle event list (event tab)

F11

Toggle full screen mode

CTRL + f

Seach station

Arrows

Move focus

Mouse wheel

Zoom in or out

Double click

Center map

Right mouse button

Open info widget

Mid mouse button

Set preliminary origin

Use cases

Get station information

  • Position the mouse above a triangle representing a station.

  • Click the right mouse button for opening the station info widget.

  • Choose one station in case several stations are in the selection range.

Get event information

  • Position the mouse above a circle representing a location of an event.

  • Click the right mouse button for opening the event info widget.

  • Choose one event in case several events are in the selection range.

Set preliminary origin

  • Position the mouse in the map

  • Press the middle mouse button

  • Set date & time and latitude, longitude & depth

  • Press “Create” to open the origin in another GUI, e.g. scolv.

    ../_images/artificial-origin.png

Search station/network

  • Press CTRL + f

  • Type station/network name

  • Double click in a station in the list to center the map at this location

Configuration

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

scmv inherits global options.

displaymode

Type: string

Set one of the available displaymodes: groundmotion or qualitycontrol

groundMotionRecordLifeSpan

Type: int

Unit: s

Sets the maximum latency in seconds of the ground motion records to be valid. Default is 300.

removeEventDataOlderThan

Type: double

Unit: s

Sets the time span in seconds to keep events. Default is 43200.

readEventsNotOlderThan

Type: double

Unit: s

Sets the time span in seconds to read events initially from database. Default is 0.

centerOrigins

Type: boolean

If a new origin/event is set/selected this option defines if the map is centered or not at the origin location. Default is false.

eventActivityLifeSpan

Type: double

Unit: s

Time span of which an event is active after origin time to show blinking associated stations. Default is 900.

expiredEventsInterval

Type: double

Unit: s

A positive value (greater than zero) defines the interval to check for expired events. A negative or zero value disables the interval check and expired events are only removed when a new event is declared or an existing event is updated. Default is 0.

legend

Type: boolean

Enables/disabled the display of the legend at startup. Default is true.

annotations

Type: boolean

Enables/disabled drawing of station annotations at startup. Default is false.

annotationsWithChannels

Type: boolean

Enables/disabled drawing of station annotations with location/channel codes. Default is true.

mapLegendPosition

Type: string

Sets the location of the map symbol legend (QC, ground motion). Use either: topleft, topright, bottomright or bottomleft. Default is topleft.

eventLegendPosition

Type: string

Sets the location of the event symbol legend. Use either: topleft, topright, bottomright or bottomleft. Default is bottomleft.

eventTable.visible

Type: boolean

Whether to show the event table initially or not. Default is false.

eventTable.columns

Type: list:string

The columns that are visible in the table. If nothing is specified then all columns are visible. Valid column names are: "Event", "Origin Time", "Magnitude", "Magnitude Type", "Region", "Latitude", "Longitude", "Depth".

stations.groundMotionFilter

Type: string

Sets the filter applied to determine ground motion.

Note

display.* Allows to define an initial rectangular region for the map.

display.latmin

Type: double

Unit: deg

Minimum latitude in degrees. Default is -90.

display.lonmin

Type: double

Unit: deg

Minimum longitude in degrees. Default is -180.

display.latmax

Type: double

Unit: deg

Maximum latitude in degrees. Default is 90.

display.lonmax

Type: double

Unit: deg

Maximum longitude in degrees. Default is 180.