A magnitude Md 2.4 earthquake occured in region: Tirreno Meridionale (MARE), on
and geographic coordinates (lat, lon) 38.6990, 15.4620 at 158 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 2.4
M 2.4 |
1991-02-06 01:11:22 |
38.699 | 15.462 | 158 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 135449 |
Field | Value |
---|---|
Time (UTC) | 1991-02-06 01:11:22 ± 1.851 |
Latitude | 38.6990 ± 0.0672 |
Longitude | 15.4620 ± 0.1782 |
Depth (km) | 158 ± 17 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 135449 |
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) | 17174.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 239 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00332 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01133 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 2.4 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 135449 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:06:16 |
Field | Value |
---|---|
Value | 2.4 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 135449 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 09:50:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.SOI.Z. | 1991-02-06T01:12:05.00 | 10.0 | undecidable | manual | S | 143 | 0.777 | 1.14 | 0.1 | |
--.FE2.Z. | 1991-02-06T01:12:04.00 | 10.0 | undecidable | manual | S | 143 | 0.8214 | -0.37 | 0.4 | |
--.CSI.Z. | 1991-02-06T01:11:51.60 | 10.0 | negative | manual | P | 30 | 1.2543 | 1.27 | 0.1 | |
--.SOI.Z. | 1991-02-06T01:11:47.50 | 10.0 | undecidable | manual | P | 143 | 0.777 | 1.2 | 0.2 | |
--.SE2.Z. | 1991-02-06T01:11:47.94 | 10.0 | negative | manual | P | 72 | 1.0212 | -0.27 | 1.8 | |
--.RI2.Z. | 1991-02-06T01:11:46.20 | 10.0 | undecidable | manual | P | 109 | 0.8436 | -0.76 | 0.6 | |
--.FE2.Z. | 1991-02-06T01:11:46.10 | 10.0 | positive | manual | P | 143 | 0.8214 | -0.49 | 1.6 | |
--.CZI.Z. | 1991-02-06T01:11:45.58 | 10.0 | positive | manual | P | 45 | 0.7326 | -0.42 | 1.8 | |
--.GA2.Z. | 1991-02-06T01:11:44.92 | 10.0 | negative | manual | P | 151 | 0.5994 | -0.26 | 2 | |
--.DR2.Z. | 1991-02-06T01:11:43.45 | 10.0 | positive | manual | P | 98 | 0.3663 | -0.63 | 1.4 |