Earthquake Catalog Download Tool
Recent Earthquakes:
Earthquake Catalog
These catalogs are lists of earthquakes that have occured within Oklahoma. Each earthquake is accompanied by detailed information regarding its location and size. The Catalogs found here are fairly complete to a minimum magnitude of 2.9 from 1980 to present, a minimum magnitude of 3.6 from 1960 to present, and a minimum magnitude of 5.0 from 1897 to present. Each catalog year, or range of years, has many downloadable file formats. Refer to Catalog Header Descriptions beow for explanations on catalog column headers.
| Category | Description |
|---|---|
| id | Internal identification number assigned by the OGS* |
| origintime | Estimated date and time of the earthquake |
| latitude | Estimated latitudinal coordinate of the earthquake epicenter |
| longitude | Estimated Longitudinal coordinate of the earthquake epicenter |
| depth | Calculated depth of the earthquake in kilometers |
| err_lon | 90% confidence interval for location uncertainty in kilometers |
| err_lat | 90% confidence interval for location uncertainty in kilometers |
| err_depth | 90% confidence interval for location uncertainty in kilometers |
| err_origintime | 90% confidence interval for location uncertainty in seconds |
| county | County within which the earthquake was located |
| origin_src | Source of reported earthquake location |
| prefmag | Preferred magnitude |
| pmag_type | Type of magnitude reported |
| pmag_src | Source of reported magnitude |
| mw | Non-OGS Moment Magnitude estimation |
| mw_src | Source of moment magnitude estimation |
| mblg_ogs | Lg body-wave magnitude estimation by the OGS |
| mblg_usgs | Lg body-wave magnitude estimation by the USGS** |
| ml_ogs | Local magnitude estimated by the OGS |
| m3hz_ogs | Lg magnitude estimate formerly used by the OGS |
| md_ogs | Earthquake duration magnitude estimated by the OGS |
| mb | Body-wave magnitude generally reported by the USGS |
| ms | Surface-wave magnitude estimation generally reported by the USGS |
| mfa | Magnitude estimate based on felt area, primarily for historical events |
| max_mmi | Maximum Modified Mercalli Intensity |
| reafile | OGS Internal data structure |
| reamtime | Last time the earthquake was updated by an analyst |
| geom | A well-known binary (WKB) Geographic Information System (GIS) format |
| pdlid | The identification number used to track submissions to the USGS Product Distribution Layer (PDL) system |
| mw_ogs | Moment magnitude calculated by the OGS} |
How to View Catalogs in Google Earth
Step 1:
Choose the catalog you would like to view (sorted by date). Near the bottom of the list are the more useful 'past30days' or 'complete' options. Note that the 'complete' option will be quite large.
Step 2:
Once you click a catalog to view, a list of file types will be displayed for download. Download the '.kml' version of the file.
Step 3:
Then, in Google Earth, go to 'file' and 'open', then select the .kml file you downloaded. The events for that particular catalog should then show up in Google Earth.
