A magnitude Md 2.3 earthquake occured in region: Costa Marchigiana Anconetana (Ancona), on
and geographic coordinates (lat, lon) 43.6780, 13.7360 at 10 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
Search earthquakes: Any within 30 km radius
The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Ancona | AN | 19 | 100861 | 100861 |
Sirolo | AN | 19 | 4051 | 104912 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1985-04-07 03:10:31 |
43.678 | 13.736 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 4239 |
Field | Value |
---|---|
Time (UTC) | 1985-04-07 03:10:31 ± 1.585 |
Latitude | 43.6780 ± 0.1139 |
Longitude | 13.7360 ± 0.1472 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 4239 |
Field | Value |
---|---|
Preferred uncertainty description | horizontal uncertainty |
Semi-major axis of confidence ellipse (meter) | |
Semi-minor axis of confidence ellipse (meter) | |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 17334.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 335 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 1.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00138 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01117 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 4239 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:08:53 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.PO9.Z. | 1985-04-07T03:11:13.00 | 10.0 | undecidable | manual | SN | 207 | 1.2432 | 1.16 | 0.3 | |
--.AS1.Z. | 1985-04-07T03:11:07.00 | 10.0 | undecidable | manual | SG | 232 | 0.999 | 1.27 | 0.5 | |
--.PO9.Z. | 1985-04-07T03:10:56.00 | 10.0 | undecidable | manual | PN | 207 | 1.2432 | 1.11 | 0.9 | |
--.AS1.Z. | 1985-04-07T03:10:52.00 | 10.0 | undecidable | manual | PG | 232 | 0.999 | 0.64 | 1.6 | |
--.AM1.Z. | 1985-04-07T03:10:37.90 | 10.0 | undecidable | manual | SG | 217 | 0.1554 | -0.89 | 0.8 | |
--.AM1.Z. | 1985-04-07T03:10:34.50 | 10.0 | undecidable | manual | PG | 217 | 0.1554 | -1.31 | 1.9 |