A magnitude Md 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on
and geographic coordinates (lat, lon) 38.4880, 13.4170 at 5 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 2.0 |
1998-09-23 03:26:57 |
38.488 | 13.417 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 351589 |
Field | Value |
---|---|
Time (UTC) | 1998-09-23 03:26:57 ± 0.215 |
Latitude | 38.4880 ± 0.0162 |
Longitude | 13.4170 ± 0.0273 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 351589 |
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) | 2977.2 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 175 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00259 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00672 |
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 | 2 |
Type of magnitude | Md |
Reference to an origin | 351589 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 22:29:23 |
Field | Value |
---|---|
Value | 2.0 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 351589 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.CS9.Z. | 1998-09-23T03:27:24.63 | 10.0 | undecidable | manual | SG | 136 | 0.7437 | -0.13 | 0.6 | |
--.GIB.Z. | 1998-09-23T03:27:23.84 | 10.0 | undecidable | manual | SG | 135 | 0.6882 | 1.08 | 0 | |
--.CS9.Z. | 1998-09-23T03:27:12.68 | 10.0 | undecidable | manual | PG | 136 | 0.7437 | -0.65 | 0.5 | |
--.GIB.Z. | 1998-09-23T03:27:12.32 | 10.0 | undecidable | manual | PG | 135 | 0.6882 | 0.15 | 1.6 | |
--.USI.Z. | 1998-09-23T03:27:09.32 | 10.0 | undecidable | manual | SG | 320 | 0.2886 | 0.35 | 0.6 | |
--.MPG.Z. | 1998-09-23T03:27:05.00 | 10.0 | undecidable | manual | PG | 188 | 0.3219 | -0.03 | 1.9 | |
--.USI.Z. | 1998-09-23T03:27:04.00 | 10.0 | undecidable | manual | PG | 320 | 0.2886 | -0.21 | 1.7 |