OGC WFS event parameters web services
The AHEAD OGC WFS services provides the EPICA v1.1 1000-1899 catalogue, the European PreInstrumental earthquake CAtalogue.
Data citation:
Rovida A., Antonucci A. (2021). EPICA - European PreInstrumental earthquake CAtalogue, version 1.1. Istituto Nazionale di Geofisica e Vulcanologia (INGV). https://doi.org/10.13127/epica.1.1.
Use of data retrieved from OGC web services in a GIS
The OGC standard is supported by GIS software such as ESRI ArcMap and QGIS.
ESRI ArcMap
- In order to load a WFS layer into ArcMap you must install the "Data Interoperability" extension that requires a specific license.
QGIS
Query examples
Here you may find some example of the possible queries offered by OGC web services.
Please, refer to the corresponding manuals at OGC, WFS for a complete overview of their standard.
Web service capabilities
Get the features
Get the description of the features
Request a specific earthquake using the AHEAD event ID
Request all earthquakes having magnitude (Mw) greater or equal to 6
Request all earthquakes having magnitude (Mw) greater or equal to 6 in a geographical bounding box
The WFS has GML as the default format for encoding data.
If you would like to obtain a result encoded using a different format,
you may add the parameter "&outputFormat=".
Here the list of supported output formats:
csv, excel, excel2007, gml2, gml3, gml32, json, kml, shape-zip
Field descriptions of the table
| CODE | CONTENT |
| EqID | Earthquake number: unique identifier of the catalogue entry, from AHEAD |
| SheecID | SHEEC earthquake number: ID of SHEEC 1000-1899 v. 3.3 |
| Earthquake origin time and area | |
| Year | Origin time: year (from the MDPs source, when available, or from the source catalogue) |
| Mo | Origin time: month (from the MDPs source, when available, or from the source catalogue) |
| Da | Origin time: day (from the MDPs source, when available, or from the source catalogue) |
| Ho | Origin time: hour (from the MDPs source, when available, or from the source catalogue) |
| Mi | Origin time: minutes (from the MDPs source, when available, or from the source catalogue) |
| Ax | Epicentral area (from the MDPs source or from the source catalogue, when available) |
| Parameters | |
| Reg | Region of macroseismic intensity attenuation: assessed with the purpose of calibrating the MDPs methods, Boxer, B&W, MEEP, and deriving Mw(Io) regressions (see Stucchi et al., 2013) |
| ICE: Iceland | |
| SCR: Stable Continental | |
| WAP: Western Alps and Pyrenees | |
| BET: Betic | |
| APD: Apennines, North-Eastern Alps and Dinarides | |
| IVA: Italian Volcanic Areas | |
| VRD: Vrancea, deep events | |
| BAS: Broad Aegean, shallow | |
| BAI: Broad Aegean, intermediate | |
| TSZ: Transform Source Zone offshore Portugal | |
| Lat | Epicentral latitude [decimal degrees], see Tepi |
| Lon | Epicentral longitude [decimal degrees], see Tepi |
| TEpi | Type of determination of the epicentre: |
| bx: from MDPs with Boxer | |
| bw: from MDPs with B&W | |
| me: from MDPs with MEEP | |
| cat: from the source catalogue (see CatSource) | |
| pr: preliminary epicentre of the events without magnitude determination | |
| LatUnc | Epicentral latitude uncertainty [km], see TepiUnc |
| LonUnc | Epicentral longitude uncertainty [km], see TepiUnc |
| TEpiUnc | Type of determination of epicentre uncertainty: |
| orig: taken from the source catalogue or determined from MDPs (according to TEpi) | |
| conv: converted into km from the source catalogue | |
| def: assigned value | |
| H | Depth [km] |
| HUnc | Depth uncertainty [km] |
| TH | Type of determination of the depth : |
| cat: from the source catalogue | |
| me: determination from MDPs, with MEEP | |
| Io | Epicentral intensity |
| TIo | Type of epicentral intensity determination: |
| cat: from the source catalogue | |
| bx: from MDPs, with Boxer | |
| Mw | Moment magnitude |
| MwUnc | Moment magnitude uncertainty |
| TMw | Origin of moment magnitude and its uncertainty: |
| wm: weighted mean of Mw from MDPs and from the source catalogue | |
| MMw: determined from MDPs processing | |
| CMw: determined processing the original parameters of the source catalogue | |
| nd: not determined | |
| Macroseismic Data (MDPs) | |
| MDPsSource | Code of the MDPs source for the entry. It provides the date of the earthquake and the MDPs processed for determining the earthquake parameters |
| NMDP | Number of Macroseismic Data Points in MDPsSource |
| Ix | Maximum intensity in MDPsSource |
| MMw | Moment magnitude from the processing of MDPs |
| MMwUnc | Mw uncertainty from the processing of MDPs |
| TMMw | Method of Mw determination from MDPs: |
| bx: with Boxer | |
| bw: with B&W | |
| me: with MEEP | |
| Regional catalogue | |
| CatSource | Code of the source catalogue for the entry. It provides the date of the earthquake and earthquake parameters when MDPsSource is empty |
| CIo | Epicentral intensity from the source catalogue |
| CMw | Moment magnitude from the source catalogue |
| CMwUnc | Mw uncertainty associated to the moment magnitude from the source catalogue |
| CTMw | Type of Mw determination from the source catalogue: |
| Wor: Mw taken from the source catalogue | |
| RIo: converted from Io with Mw(Io) regressions | |
| Ms: considered equivalent to Ms | |
| Gra09: converted from ML according to Grünthal et al. (2009) | |
| wa: unspecified magnitude assumed equivalent to Mw | |
References