A magnitude M 4.1 earthquake occured in region: Mar Ionio Meridionale (MARE), on
and geographic coordinates (lat, lon) 37.4500, 20.2550 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.
No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
M 4.1 | 1986-05-01 10:59:29 |
37.45 | 20.255 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 26229 |
Field | Value |
---|---|
Time (UTC) | 1986-05-01 10:59:29 ± 0.325 |
Latitude | 37.4500 ± 0.0289 |
Longitude | 20.2550 ± 0.0262 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 26229 |
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) | 3958.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 150 |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 23 |
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) | 0.02186 |
Epicentral distance of station farthest from the epicenter (degree) | 0.08815 |
Number of stations at which the event was observed | 22 |
Number of stations from which data was used for origin computation | 22 |
Field | Value |
---|---|
Value | 4.1 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 26229 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 09:54:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.VOY.Z. | 1986-05-01T11:01:48.80 | 10.0 | undecidable | manual | PN | 333 | 9.7902 | -1.32 | 0.1 | |
--.PZI.Z. | 1986-05-01T11:01:22.00 | 10.0 | undecidable | manual | SN | 266 | 4.2291 | 1.15 | 0.1 | |
--.SD1.Z. | 1986-05-01T11:01:05.00 | 10.0 | undecidable | manual | PN | 312 | 6.5268 | -0.35 | 1.1 | |
--.FG3.Z. | 1986-05-01T11:00:50.00 | 10.0 | undecidable | manual | PN | 323 | 5.3835 | 0.35 | 1.2 | |
--.IVA.Z. | 1986-05-01T11:00:49.80 | 10.0 | undecidable | manual | PN | 357 | 5.4168 | -0.27 | 1.3 | |
--.SGO.Z. | 1986-05-01T11:00:43.00 | 10.0 | undecidable | manual | PN | 310 | 4.9284 | -0.42 | 1.2 | |
--.BCI.Z. | 1986-05-01T11:00:43.50 | 10.0 | undecidable | manual | PN | 358 | 4.9062 | 0.43 | 1.2 | |
--.NPS.Z. | 1986-05-01T11:00:41.50 | 10.0 | undecidable | manual | PN | 115 | 4.8285 | -0.46 | 1.2 | |
--.CDM.Z. | 1986-05-01T11:00:41.00 | 10.0 | undecidable | manual | PN | 320 | 4.7508 | 0.09 | 1.4 | |
--.SDA.Z. | 1986-05-01T11:00:39.00 | 10.0 | undecidable | manual | PN | 352 | 4.5954 | 0.26 | 1.4 | |
--.MG9.Z. | 1986-05-01T11:00:39.00 | 10.0 | undecidable | manual | PN | 307 | 4.5288 | 1.08 | 0.4 | |
--.BAI.Z. | 1986-05-01T11:00:36.00 | 10.0 | undecidable | manual | PN | 325 | 4.4844 | -1.26 | 0.3 | |
--.PZI.Z. | 1986-05-01T11:00:33.00 | 10.0 | undecidable | manual | PN | 266 | 4.2291 | -0.8 | 0.8 | |
--.PHP.Z. | 1986-05-01T11:00:33.20 | 10.0 | undecidable | manual | PN | 1 | 4.2291 | -0.57 | 1.1 | |
--.BRT.Z. | 1986-05-01T11:00:33.00 | 10.0 | undecidable | manual | PN | 325 | 4.1736 | -0.02 | 1.5 | |
--.PE1.Z. | 1986-05-01T11:00:30.00 | 10.0 | undecidable | manual | PN | 327 | 3.996 | -0.61 | 1 | |
--.TIR.Z. | 1986-05-01T11:00:29.00 | 10.0 | undecidable | manual | PN | 355 | 3.8961 | -0.22 | 1.4 | |
--.LCI.Z. | 1986-05-01T11:00:22.00 | 10.0 | undecidable | manual | PN | 330 | 3.33 | 0.7 | 0.9 | |
--.GR9.Z. | 1986-05-01T11:00:22.00 | 10.0 | undecidable | manual | PN | 295 | 3.2967 | 1.07 | 0.4 | |
--.KBN.Z. | 1986-05-01T11:00:20.30 | 10.0 | negative | manual | PN | 6 | 3.1857 | 0.8 | 1.5 | |
--.KZN.Z. | 1986-05-01T11:00:17.50 | 10.0 | undecidable | manual | PN | 21 | 3.0858 | -0.5 | 1.1 | |
--.ATH.Z. | 1986-05-01T11:00:14.50 | 10.0 | undecidable | manual | PN | 77 | 2.775 | 0.66 | 0.9 | |
--.SRN.Z. | 1986-05-01T11:00:09.10 | 10.0 | undecidable | manual | PN | 355 | 2.4309 | 0.06 | 1.5 |