A magnitude Md 2.5 earthquake occured in region: Mar Ionio Meridionale (MARE), on
and geographic coordinates (lat, lon) 37.5730, 16.2020 at 21 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 2.5
ML-VAX 2.4 |
1991-07-18 08:56:00 |
37.573 | 16.202 | 21 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 145739 |
Field | Value |
---|---|
Time (UTC) | 1991-07-18 08:56:00 ± 0.496 |
Latitude | 37.5730 ± 0.0230 |
Longitude | 16.2020 ± 0.0433 |
Depth (km) | 21 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 145739 |
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) | 4594.9 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 230 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00421 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01473 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 2.5 |
Uncertainty | |
Num. used stations | 6 |
Type of magnitude | Md |
Reference to an origin | 145739 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:16:03 |
Field | Value |
---|---|
Value | 2.4 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | ML |
Reference to an origin | 145739 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.MNO.Z. | 1991-07-18T08:56:38.76 | 10.0 | undecidable | manual | SN | 287 | 1.2432 | 0.13 | 0.5 | |
--.PZI.Z. | 1991-07-18T08:56:35.47 | 10.0 | undecidable | manual | SN | 242 | 1.11 | -0.29 | 0.5 | |
--.MEU.Z. | 1991-07-18T08:56:35.94 | 10.0 | undecidable | manual | SN | 247 | 1.1766 | -1.25 | 0.1 | |
--.AU9.Z. | 1991-07-18T08:56:29.50 | 10.0 | undecidable | manual | SN | 247 | 0.8325 | 0.45 | 0.5 | |
--.ATN.Z. | 1991-07-18T08:56:28.82 | 10.0 | undecidable | manual | SN | 315 | 0.8214 | 0.13 | 0.6 | |
--.CZI.Z. | 1991-07-18T08:56:28.40 | 10.0 | undecidable | manual | PN | 358 | 1.6317 | 0.31 | 0.9 | |
--.MNO.Z. | 1991-07-18T08:56:24.14 | 10.0 | undecidable | manual | PN | 287 | 1.2432 | 1.55 | 0.1 | |
--.MEU.Z. | 1991-07-18T08:56:22.17 | 10.0 | undecidable | manual | PN | 247 | 1.1766 | 0.41 | 1 | |
--.PZI.Z. | 1991-07-18T08:56:21.23 | 10.0 | positive | manual | PN | 242 | 1.11 | 0.3 | 2.3 | |
--.MO9.Z. | 1991-07-18T08:56:20.96 | 10.0 | undecidable | manual | SG | 316 | 0.5883 | -0.8 | 0.3 | |
--.DR2.Z. | 1991-07-18T08:56:19.84 | 10.0 | undecidable | manual | PN | 348 | 1.0878 | -0.65 | 0.8 | |
--.SOI.Z. | 1991-07-18T08:56:18.73 | 10.0 | undecidable | manual | SG | 346 | 0.5106 | -0.72 | 0.3 | |
--.ATN.Z. | 1991-07-18T08:56:17.33 | 10.0 | undecidable | manual | PN | 315 | 0.8214 | 0.48 | 1.1 | |
--.AU9.Z. | 1991-07-18T08:56:16.50 | 10.0 | undecidable | manual | PN | 247 | 0.8325 | -0.56 | 1 | |
--.PA2.Z. | 1991-07-18T08:56:16.62 | 10.0 | undecidable | manual | PN | 11 | 0.9102 | -1.47 | 0.1 | |
--.GMB.Z. | 1991-07-18T08:56:14.43 | 10.0 | undecidable | manual | PG | 333 | 0.6549 | 0.19 | 1.4 | |
--.GA2.Z. | 1991-07-18T08:56:13.86 | 10.0 | negative | manual | PG | 333 | 0.6549 | -0.38 | 2.4 | |
--.MO9.Z. | 1991-07-18T08:56:12.71 | 10.0 | undecidable | manual | PG | 316 | 0.5883 | -0.14 | 1.4 | |
--.FE2.Z. | 1991-07-18T08:56:11.28 | 10.0 | negative | manual | PG | 348 | 0.4662 | 0.45 | 2.3 | |
--.SOI.Z. | 1991-07-18T08:56:11.90 | 10.0 | negative | manual | PG | 346 | 0.5106 | 0.38 | 2.4 |