A magnitude mb 4.2 earthquake occured in region: Tirreno Meridionale (MARE), on
and geographic coordinates (lat, lon) 38.72, 14.7 at 230 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 |
---|---|---|---|---|
Malfa | ME | 20 | 982 | 982 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
mb 4.2 | 1985-05-20 20:11:43 |
38.72 | 14.7 | 230 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 6889 |
Field | Value |
---|---|
Time (UTC) | 1985-05-20 20:11:43 ± 1.329 |
Latitude | 38.72 ± 0.05 |
Longitude | 14.70 ± 0.07 |
Depth (km) | 230 ± 15 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 6889 |
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) | 8056.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 103 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
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) | 0.00753 |
Epicentral distance of station farthest from the epicenter (degree) | 0.07828 |
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 | 4.2 |
Uncertainty | |
Num. used stations | |
Type of magnitude | mb |
Reference to an origin | 6889 |
Agency | INGV |
Autore | ISC |
Time of creation (UTC) | 2013-01-09 08:06:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.BN9.Z. | 1985-05-20T20:13:49.00 | 10.0 | undecidable | manual | P | 318 | 0.0783 | -0.51 | 0.9 | |
--.ROB.Z. | 1985-05-20T20:13:35.20 | 10.0 | undecidable | manual | P | 319 | 0.0681 | 0.95 | 0.4 | |
--.STV.Z. | 1985-05-20T20:13:35.00 | 10.0 | undecidable | manual | P ! | 317 | 0.0703 | -2.63 | 0 | |
--.PCN.Z. | 1985-05-20T20:13:31.00 | 10.0 | undecidable | manual | P | 330 | 0.0661 | -0.43 | 1.1 | |
--.RBL.Z. | 1985-05-20T20:13:31.00 | 10.0 | undecidable | manual | P ! | 353 | 0.0698 | -5.98 | 0 | |
--.TRI.Z. | 1985-05-20T20:13:20.50 | 10.0 | undecidable | manual | P ! | 354 | 0.0631 | -6.45 | 0 | |
--.ORI.Z. | 1985-05-20T20:12:23.00 | 10.0 | undecidable | manual | P | 44 | 0.017 | -1.09 | 0.3 | |
--.CSI.Z. | 1985-05-20T20:12:22.50 | 10.0 | undecidable | manual | P | 48 | 0.0146 | 0.83 | 0.7 | |
--.ROI.Z. | 1985-05-20T20:12:22.40 | 10.0 | undecidable | manual | P | 58 | 0.0151 | 0.27 | 3.4 | |
--.FA1.Z. | 1985-05-20T20:12:22.50 | 10.0 | undecidable | manual | P | 209 | 0.0149 | 0.5 | 1.3 | |
--.PA1.Z. | 1985-05-20T20:12:22.00 | 10.0 | undecidable | manual | P | 173 | 0.0152 | -0.33 | 1.6 | |
--.MSI.Z. | 1985-05-20T20:12:16.00 | 10.0 | undecidable | manual | P | 127 | 0.0075 | -0.05 | 1.9 | |
--.GIB.Z. | 1985-05-20T20:12:16.00 | 10.0 | undecidable | manual | P | 215 | 0.0081 | -0.38 | 1.5 |