A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on
and geographic coordinates (lat, lon) 38.4820, 15.4990 at 131 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 |
ML 2.1 | 2015-12-20 03:02:44 |
38.4823 | 15.4992 | 131 | 2016-01-14 16:23:20 |
Bollettino Sismico Italiano INGV | 22784141 |
Reviewed Rev100 |
ML 2.2 | 2015-12-20 03:02:44 |
38.4905 | 15.4888 | 132 | 2015-12-20 03:19:13 |
Sala Sismica INGV-Roma | 22756791 |
Field | Value |
---|---|
Time (UTC) | 2015-12-20 03:02:44 ± 0.21 |
Latitude | 38.4823 ± 0.0153 |
Longitude | 15.4992 ± 0.0184 |
Depth (km) | 131 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 22784141 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1739 |
Semi-minor axis of confidence ellipse (meter) | 1269 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 147 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1740.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 92 |
Number of associated phases, regardless of their use for origin computation | 25 |
Number of defining phases | 25 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.21854 |
Epicentral distance of station farthest from the epicenter (degree) | 1.54054 |
Number of stations at which the event was observed | 18 |
Number of stations from which data was used for origin computation | 18 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 22784141 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-12-22 10:40:08 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 22756791 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2015-12-20 03:19:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PLAC.HHZ. | 2015-12-20T03:03:20.87 | 0.1 | undecidable | manual | S | 92 | 81.6516 | 146 | 0.16 | 95 |
IV.SOI.EHN. | 2015-12-20T03:03:18.66 | 0.6 | undecidable | manual | S | 133 | 66.2781 | 151 | -0.32 | 47 |
IV.MTTG.HHZ. | 2015-12-20T03:03:18.21 | 0.6 | undecidable | manual | S | 162 | 55.9995 | 155 | 0.24 | 49 |
IV.GMB.BHZ. | 2015-12-20T03:03:17.48 | 0.6 | undecidable | manual | S | 140 | 45.1215 | 159 | 0.41 | 48 |
IV.JOPP.HHZ. | 2015-12-20T03:03:16.56 | 0.3 | undecidable | manual | S | 67 | 36.2415 | 163 | 0.11 | 79 |
MN.CEL.HNZ. | 2015-12-20T03:03:16.82 | 0.3 | undecidable | manual | S | 126 | 42.2244 | 161 | -0.03 | 78 |
IV.MSRU.HHZ. | 2015-12-20T03:03:15.55 | 0.3 | undecidable | manual | S | 178 | 24.2535 | 169 | -0.28 | 77 |
IV.SALB.HHZ. | 2015-12-20T03:03:13.83 | 0.3 | undecidable | manual | P | 25 | 170.9955 | 124 | 0.48 | 52 |
MN.CUC.HHE. | 2015-12-20T03:03:12.37 | 0.6 | undecidable | manual | P | 9 | 169.8966 | 124 | -0.86 | 30 |
IV.CELI.HHZ. | 2015-12-20T03:03:10.08 | 1.0 | negative | manual | P | 40 | 134.1657 | 131 | 0.38 | 20 |
MN.TIP.HHZ. | 2015-12-20T03:03:09.69 | 0.3 | positive | manual | P | 54 | 133.4664 | 131 | 0.06 | 65 |
IV.CET2.HHZ. | 2015-12-20T03:03:08.66 | 0.3 | negative | manual | P | 19 | 122.5884 | 134 | 0.04 | 67 |
IV.SERS.HHZ. | 2015-12-20T03:03:08.56 | 0.3 | positive | manual | P | 59 | 119.7912 | 134 | 0.18 | 66 |
IV.SPS2.HHZ. | 2015-12-20T03:03:07.85 | 0.6 | negative | manual | P | 39 | 115.2957 | 135 | -0.14 | 45 |
IV.IFIL.HHN. | 2015-12-20T03:03:05.42 | 0.3 | undecidable | manual | P | 277 | 80.6637 | 146 | 0.18 | 71 |
IV.PLAC.HHZ. | 2015-12-20T03:03:05.27 | 0.1 | positive | manual | P | 92 | 81.6516 | 146 | -0.04 | 97 |
IV.SOI.EHN. | 2015-12-20T03:03:04.08 | 0.1 | positive | manual | P | 133 | 66.2781 | 151 | -0.22 | 97 |
IV.NOV.HHZ. | 2015-12-20T03:03:04.45 | 0.6 | undecidable | manual | P | 212 | 59.496 | 154 | 0.54 | 45 |
IV.IVPL.HHZ. | 2015-12-20T03:03:03.20 | 0.3 | undecidable | manual | P | 256 | 46.62 | 159 | -0.07 | 77 |
IV.GMB.BHZ. | 2015-12-20T03:03:03.22 | 0.3 | undecidable | manual | P | 140 | 45.1215 | 159 | 0.02 | 78 |
IV.MTTG.HHZ. | 2015-12-20T03:03:03.89 | 0.3 | undecidable | manual | P | 162 | 55.9995 | 155 | 0.17 | 74 |
IV.MCSR.HHZ. | 2015-12-20T03:03:03.79 | 0.3 | undecidable | manual | P | 207 | 51.9036 | 157 | 0.27 | 73 |
IV.JOPP.HHZ. | 2015-12-20T03:03:02.61 | 0.3 | undecidable | manual | P | 67 | 36.2415 | 163 | -0.24 | 76 |
MN.CEL.HNZ. | 2015-12-20T03:03:02.84 | 0.3 | undecidable | manual | P | 126 | 42.2244 | 161 | -0.24 | 75 |
IV.MSRU.HHZ. | 2015-12-20T03:03:02.08 | 0.1 | undecidable | manual | P | 178 | 24.2535 | 169 | -0.41 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CET2.HHE. | ML:2.2 | 0.000060899999999999996 | 0.26 | AML | other | m | 2015-12-20T03:03:27.18 |
IV.CET2.HHN. | ML:2.3 | 0.00007519999999999998 | 0.56 | AML | other | m | 2015-12-20T03:03:27.93 |
IV.GMB.BHN. | ML:2.6 | 0.0002615 | 0.48 | AML | other | m | 2015-12-20T03:03:18.62 |
IV.GMB.BHE. | ML:2.7 | 0.000289 | 0.56 | AML | other | m | 2015-12-20T03:03:19.22 |
IV.JOPP.HHE. | ML:2.0 | 0.00005545 | 0.16 | AML | other | m | 2015-12-20T03:03:16.88 |
IV.JOPP.HHN. | ML:2.1 | 0.00007735 | 0.16 | AML | other | m | 2015-12-20T03:03:17.43 |
IV.MTTG.HHE. | ML:2.0 | 0.0000494 | 1.3 | AML | other | m | 2015-12-20T03:03:20.27 |
IV.MTTG.HHN. | ML:2.0 | 0.00005305 | 0.66 | AML | other | m | 2015-12-20T03:03:23.53 |
IV.PLAC.HHN. | ML:1.9 | 0.000039149999999999996 | 0.68 | AML | other | m | 2015-12-20T03:03:21.01 |
IV.PLAC.HHE. | ML:1.9 | 0.00003485000000000001 | 0.28 | AML | other | m | 2015-12-20T03:03:21.09 |
IV.SALB.HNE. | ML:2.4 | 0.00006035 | 1.22 | AML | other | m | 2015-12-20T03:03:29.44 |
IV.SALB.HNN. | ML:2.2 | 0.00004065 | 1.58 | AML | other | m | 2015-12-20T03:03:58.58 |