A magnitude Md 2.1 earthquake occured in region: Mar Ionio Meridionale (MARE), on
and geographic coordinates (lat, lon) 37.2700, 15.8420 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.
No Italian municipalities within 20 km distance.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1
ML-VAX 1.5 |
1991-08-29 21:54:45 |
37.27 | 15.842 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 148409 |
Field | Value |
---|---|
Time (UTC) | 1991-08-29 21:54:45 ± 1.281 |
Latitude | 37.2700 ± 0.0520 |
Longitude | 15.8420 ± 0.0831 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 148409 |
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) | 9351.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 241 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.9 |
Epicentral distance of station closest to the epicenter (degree) | 0.00437 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00737 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 148409 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:18:31 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | ML |
Reference to an origin | 148409 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MO9.Z. | 1991-08-29T21:55:11.00 | 10.0 | undecidable | manual | SG | 350 | 0.7326 | 0.3 | 0.8 | |
--.PZI.Z. | 1991-08-29T21:55:09.40 | 10.0 | undecidable | manual | SG | 253 | 0.7326 | -1.41 | 0.4 | |
--.AU9.Z. | 1991-08-29T21:55:02.10 | 10.0 | undecidable | manual | SG | 267 | 0.4884 | -0.76 | 0.7 | |
--.MO9.Z. | 1991-08-29T21:55:01.27 | 10.0 | undecidable | manual | PG | 350 | 0.7326 | 1.43 | 0.9 | |
--.PZI.Z. | 1991-08-29T21:55:00.32 | 10.0 | undecidable | manual | PG | 253 | 0.7326 | 0.42 | 1.9 | |
--.SOI.Z. | 1991-08-29T21:54:59.55 | 10.0 | undecidable | manual | PG | 11 | 0.8214 | -1.77 | 0.6 | |
--.AU9.Z. | 1991-08-29T21:54:55.77 | 10.0 | undecidable | manual | PG | 267 | 0.4884 | 0.52 | 1.9 |