A magnitude ML 1.8 earthquake occured in region: Tirreno Meridionale (MARE), on
and geographic coordinates (lat, lon) 39.3120, 15.2080 at 272 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 1.8 | 2021-10-31 20:48:30 |
39.312 | 15.2077 | 272 | 2022-03-30 13:04:32 |
Bollettino Sismico Italiano INGV | 100013941 |
Reviewed Rev100 |
ML 1.8 | 2021-10-31 20:48:31 |
39.3607 | 15.2792 | 271 | 2021-10-31 20:58:07 |
Sala Sismica INGV-Roma | 97118101 |
Field | Value |
---|---|
Time (UTC) | 2021-10-31 20:48:30 ± 0.41 |
Latitude | 39.3120 ± 0.0360 |
Longitude | 15.2077 ± 0.0732 |
Depth (km) | 272 ± 4 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 100013941 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 6184 |
Semi-minor axis of confidence ellipse (meter) | 3994 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 89 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 6180.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 235 |
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) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.61604 |
Epicentral distance of station farthest from the epicenter (degree) | 1.37057 |
Number of stations at which the event was observed | 17 |
Number of stations from which data was used for origin computation | 17 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 97118101 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-31 20:58:07 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 100013941 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-02-17 13:10:07 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PIPA.HHE. | 2021-10-31T20:49:39.09 | 0.6 | undecidable | manual | S | 82 | 139.1607 | 152 | -0.36 | 45 |
IV.SELL.HHE. | 2021-10-31T20:49:39.16 | 1.0 | undecidable | manual | S | 106 | 127.4724 | 154 | 0.85 | 19 |
IV.PLAC.HHE. | 2021-10-31T20:49:39.41 | 0.6 | undecidable | manual | S | 132 | 142.9458 | 151 | -0.44 | 43 |
IV.SERS.HHZ. | 2021-10-31T20:49:38.84 | 0.6 | undecidable | manual | S | 103 | 130.9689 | 153 | 0.2 | 47 |
MN.TIP.HHZ. | 2021-10-31T20:49:38.82 | 0.6 | undecidable | manual | S | 96 | 134.0658 | 153 | -0.12 | 47 |
IV.CELI.HHZ. | 2021-10-31T20:49:37.70 | 0.6 | undecidable | manual | S | 84 | 111.999 | 157 | 0.78 | 40 |
IV.JOPP.HHE. | 2021-10-31T20:49:35.97 | 0.6 | undecidable | manual | S | 143 | 97.6245 | 159 | 0.2 | 50 |
IV.CAR1.HHZ. | 2021-10-31T20:49:34.23 | 0.6 | undecidable | manual | S | 94 | 86.4468 | 162 | -0.73 | 44 |
IV.LADO.EHE. | 2021-10-31T20:49:10.71 | 0.3 | undecidable | manual | P | 91 | 152.1366 | 150 | -0.45 | 63 |
IV.PIPA.HHE. | 2021-10-31T20:49:10.00 | 0.3 | undecidable | manual | P | 82 | 139.1607 | 152 | -0.38 | 66 |
IV.ORI.HHE. | 2021-10-31T20:49:10.27 | 0.3 | undecidable | manual | P | 52 | 134.0658 | 153 | 0.19 | 70 |
IV.PLAC.HHE. | 2021-10-31T20:49:10.43 | 0.3 | undecidable | manual | P | 132 | 142.9458 | 151 | -0.17 | 69 |
IV.CELI.HHZ. | 2021-10-31T20:49:09.48 | 0.3 | undecidable | manual | P | 84 | 111.999 | 157 | 0.57 | 67 |
IV.SPS2.HHE. | 2021-10-31T20:49:09.28 | 0.3 | undecidable | manual | P | 91 | 97.125 | 160 | 1.06 | 56 |
MN.TIP.HHZ. | 2021-10-31T20:49:09.86 | 0.1 | undecidable | manual | P | 96 | 134.0658 | 153 | -0.22 | 93 |
IV.GRI.EHE. | 2021-10-31T20:49:09.47 | 0.3 | undecidable | manual | P | 117 | 117.6933 | 156 | 0.27 | 71 |
IV.TDS.HHE. | 2021-10-31T20:49:09.11 | 0.3 | undecidable | manual | P | 68 | 104.118 | 158 | 0.57 | 68 |
IV.SERS.HHZ. | 2021-10-31T20:49:09.72 | 0.1 | undecidable | manual | P | 103 | 130.9689 | 153 | -0.19 | 94 |
IV.SCHR.EHN. | 2021-10-31T20:49:09.83 | 0.3 | undecidable | manual | P | 37 | 123.1878 | 155 | 0.35 | 69 |
IV.SELL.HHE. | 2021-10-31T20:49:09.76 | 0.3 | undecidable | manual | P | 106 | 127.4724 | 154 | 0.04 | 73 |
IV.JOPP.HHE. | 2021-10-31T20:49:08.47 | 0.1 | undecidable | manual | P | 143 | 97.6245 | 159 | 0.22 | 100 |
IV.CAR1.HHZ. | 2021-10-31T20:49:07.26 | 0.3 | undecidable | manual | P | 94 | 86.4468 | 162 | -0.52 | 71 |
IV.MGR.HHE. | 2021-10-31T20:49:07.96 | 0.3 | undecidable | manual | P | 18 | 96.2259 | 160 | -0.22 | 75 |
IV.CET2.HHZ. | 2021-10-31T20:49:06.70 | 0.6 | undecidable | manual | P | 69 | 68.376 | 165 | -0.44 | 50 |
IV.GRIS.EHE. | 2021-10-31T20:49:06.41 | 0.6 | undecidable | manual | P | 49 | 72.8715 | 164 | -0.88 | 42 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SERS.HHE. | ML:1.9 | 0.000008727245500000001 | 1.7824 | AML | other | m | 2021-10-31T20:49:09.99 |
IV.CELI.HHN. | ML:1.6 | 0.000005296812700000001 | 1.7824 | AML | other | m | 2021-10-31T20:49:10.93 |
MN.TIP.HHN. | ML:1.9 | 0.00000816783 | 0.3328 | AML | other | m | 2021-10-31T20:49:10.27 |
IV.SERS.HHN. | ML:2.1 | 0.0000168762825 | 0.2432 | AML | other | m | 2021-10-31T20:49:10.22 |
MN.TIP.HHE. | ML:1.6 | 0.0000041879635 | 0.1152 | AML | other | m | 2021-10-31T20:49:10.57 |
IV.CELI.HHE. | ML:1.6 | 0.000006907729499999999 | 0.4096 | AML | other | m | 2021-10-31T20:49:11.39 |