A magnitude ML 1.7 earthquake occured in region: Mar Ligure (MARE), on
and geographic coordinates (lat, lon) 43.8710, 9.0950 at 22 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 1.7 | 2021-12-30 13:13:48 |
43.871 | 9.095 | 22 | 2022-03-30 13:04:25 |
Bollettino Sismico Italiano INGV | 99256141 |
Reviewed Rev100 |
ML 1.7 | 2021-12-30 13:13:48 |
43.8385 | 9.1078 | 19 | 2021-12-30 13:27:23 |
Sala Sismica INGV-Roma | 99148731 |
Field | Value |
---|---|
Time (UTC) | 2021-12-30 13:13:48 ± 0.17 |
Latitude | 43.8710 ± 0.0153 |
Longitude | 9.0950 ± 0.0087 |
Depth (km) | 22 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 99256141 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1594 |
Semi-minor axis of confidence ellipse (meter) | 624 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 187 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1590.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 96 |
Number of associated phases, regardless of their use for origin computation | 46 |
Number of defining phases | 30 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.41 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 1.32380 |
Number of stations at which the event was observed | 38 |
Number of stations from which data was used for origin computation | 22 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.4 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 99256141 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-02-03 11:21:58 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.4 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 99148731 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-30 13:27:23 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IT.LNT.HGZ. | 2021-12-30T13:16:03.93 | 3.0 | undecidable | manual | P | 2.011 | 0 | |||
AC.PUK.HHZ. | 2021-12-30T13:15:54.14 | 3.0 | undecidable | manual | P | 8.16 | 0 | |||
CR.STON.BHZ. | 2021-12-30T13:15:47.18 | 3.0 | positive | manual | P | 2.567 | 0 | |||
SL.KOGS.BHZ. | 2021-12-30T13:15:37.87 | 3.0 | undecidable | manual | P | 2.529 | 0 | |||
IV.VIVA.HHZ. | 2021-12-30T13:15:33.71 | 3.0 | undecidable | manual | Sg | -4.03 | 0 | |||
IV.CMPR.HHZ. | 2021-12-30T13:15:32.19 | 3.0 | positive | manual | P | 1.797 | 0 | |||
IV.PP3.EHZ. | 2021-12-30T13:15:31.26 | 3.0 | undecidable | manual | Sg | 0.68 | 0 | |||
CR.ZAG.BHZ. | 2021-12-30T13:15:27.12 | 3.0 | negative | manual | P | 2.014 | 0 | |||
IV.SGRT.HHZ. | 2021-12-30T13:15:25.78 | 3.0 | undecidable | manual | P | 1.84 | 0 | |||
OT.OT12.EHZ. | 2021-12-30T13:15:25.43 | 3.0 | negative | manual | P | 1.578 | 0 | |||
IV.ARVD.HHZ. | 2021-12-30T13:15:21.10 | 3.0 | undecidable | manual | Sg | 2.77 | 0 | |||
IV.FOSV.EHZ. | 2021-12-30T13:15:13.40 | 3.0 | undecidable | manual | Sg | -3.49 | 0 | |||
IV.ZEN8.EHZ. | 2021-12-30T13:14:50.88 | 3.0 | undecidable | manual | Sn | -0.77 | 0 | |||
IV.GAVE.EHZ. | 2021-12-30T13:14:47.12 | 3.0 | positive | manual | P | 1.162 | 0 | |||
IV.MC2.EHZ. | 2021-12-30T13:14:42.22 | 3.0 | negative | manual | P | 5.03 | 0 | |||
IV.SSFR.HHZ. | 2021-12-30T13:14:35.17 | 3.0 | negative | manual | P | 3.76 | 0 | |||
GU.STV.HHN. | 2021-12-30T13:14:29.22 | 0.6 | undecidable | manual | S | 287 | 146.9418 | 54 | -0.92 | 35 |
GU.POPM.HHZ. | 2021-12-30T13:14:27.51 | 0.6 | undecidable | manual | S | 81 | 134.0658 | 95 | 0.43 | 42 |
GU.GBOS.HHE. | 2021-12-30T13:14:19.65 | 0.6 | undecidable | manual | S | 293 | 108.2139 | 97 | -0.55 | 43 |
GU.MGRO.HHE. | 2021-12-30T13:14:18.70 | 0.6 | undecidable | manual | S | 281 | 104.5176 | 97 | -0.52 | 44 |
GU.EQUI.HHZ. | 2021-12-30T13:14:13.85 | 0.6 | undecidable | manual | S | 68 | 90.5427 | 98 | -1.67 | 28 |
GU.STV.HHN. | 2021-12-30T13:14:12.94 | 0.6 | undecidable | manual | P | 287 | 146.9418 | 54 | 0.32 | 43 |
IV.QLNO.HHZ. | 2021-12-30T13:14:12.19 | 0.6 | undecidable | manual | S | 310 | 78.0663 | 99 | -0.03 | 52 |
GU.ENR.HHN. | 2021-12-30T13:14:11.89 | 0.3 | undecidable | manual | P | 287 | 139.4604 | 95 | 0.21 | 67 |
RD.PGF.BHE. | 2021-12-30T13:14:11.17 | 1.0 | undecidable | manual | P | 183 | 146.9418 | 54 | -1.45 | 14 |
GU.POPM.HHZ. | 2021-12-30T13:14:11.69 | 0.3 | undecidable | manual | P | 81 | 134.0658 | 95 | 0.83 | 54 |
GU.GSCL.HHN. | 2021-12-30T13:14:10.89 | 0.3 | undecidable | manual | P | 65 | 130.2696 | 95 | 0.62 | 60 |
IV.BDI.HNZ. | 2021-12-30T13:14:09.23 | 0.6 | undecidable | manual | P | 79 | 121.6893 | 96 | 0.28 | 45 |
FR.SAOF.HHE.00 | 2021-12-30T13:14:09.51 | 1.0 | undecidable | manual | P | 276 | 123.8871 | 96 | 0.22 | 23 |
GU.RNCA.HHZ. | 2021-12-30T13:14:08.94 | 0.3 | undecidable | manual | S | 350 | 67.5768 | 101 | -0.53 | 72 |
GU.SARM.EHE. | 2021-12-30T13:14:07.17 | 0.6 | undecidable | manual | P | 71 | 109.8123 | 96 | 0.04 | 49 |
GU.MAIM.HHE. | 2021-12-30T13:14:07.31 | 0.6 | undecidable | manual | P | 87 | 111.6993 | 96 | -0.12 | 49 |
IV.BOB.HHE. | 2021-12-30T13:14:06.60 | 0.3 | undecidable | manual | P | 16 | 103.3188 | 97 | 0.46 | 68 |
IV.PLMA.HHE. | 2021-12-30T13:14:06.85 | 0.6 | undecidable | manual | S | 72 | 63.7917 | 102 | -1.63 | 30 |
GU.MGRO.HHE. | 2021-12-30T13:14:06.40 | 0.1 | undecidable | manual | P | 281 | 104.5176 | 97 | 0.08 | 100 |
GU.GBOS.HHE. | 2021-12-30T13:14:06.89 | 0.1 | undecidable | manual | P | 293 | 108.2139 | 97 | 0.01 | 99 |
GU.GRAM.HHE. | 2021-12-30T13:14:06.42 | 0.3 | undecidable | manual | P | 48 | 103.3188 | 97 | 0.28 | 70 |
GU.IMI.HHE. | 2021-12-30T13:14:05.66 | 0.3 | undecidable | manual | P | 273 | 96.126 | 97 | 0.61 | 67 |
GU.PCP.HHZ. | 2021-12-30T13:14:03.72 | 0.3 | undecidable | manual | P | 330 | 86.247 | 98 | 0.19 | 75 |
GU.EQUI.HHZ. | 2021-12-30T13:14:03.95 | 0.1 | undecidable | manual | P | 68 | 90.5427 | 98 | -0.24 | 100 |
GU.GORR.HHE. | 2021-12-30T13:14:03.58 | 0.3 | undecidable | manual | P | 11 | 83.1501 | 99 | 0.52 | 70 |
GU.RORO.HHZ. | 2021-12-30T13:14:03.49 | 0.3 | undecidable | manual | P | 288 | 86.3469 | 98 | -0.06 | 77 |
IV.QLNO.HHZ. | 2021-12-30T13:14:02.55 | 0.6 | undecidable | manual | P | 310 | 78.0663 | 99 | 0.27 | 50 |
GU.RNCA.HHZ. | 2021-12-30T13:14:01.66 | 0.3 | undecidable | manual | P | 350 | 67.5768 | 101 | 0.97 | 60 |
IV.PLMA.HHE. | 2021-12-30T13:13:59.64 | 0.1 | undecidable | manual | P | 72 | 63.7917 | 102 | -0.48 | 100 |
IV.MSSA.HHZ. | 2021-12-30T13:13:58.98 | 0.1 | undecidable | manual | P | 34 | 59.7957 | 103 | -0.54 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MSSA.HHN. | ML:2.1 | 0.000224 | 0.1 | AML | other | m | 2021-12-30T13:14:09.32 |
IV.MSSA.HHE. | ML:2.1 | 0.00022349999999999998 | 0.12 | AML | other | m | 2021-12-30T13:14:09.74 |
GU.RNCA.HHN. | ML:1.9 | 0.0001275 | 0.56 | AML | other | m | 2021-12-30T13:14:11.24 |
GU.RNCA.HHE. | ML:1.9 | 0.00014050000000000003 | 1.56 | AML | other | m | 2021-12-30T13:14:11.88 |
IV.QLNO.HHE. | ML:1.3 | 0.000023723109999999997 | 1.6608 | AML | other | m | 2021-12-30T13:14:14.99 |
IV.QLNO.HHN. | ML:1.3 | 0.000026773405 | 0.1984 | AML | other | m | 2021-12-30T13:14:14.76 |
GU.PCP.HHN. | ML:1.4 | 0.000030087645 | 1.5584 | AML | other | m | 2021-12-30T13:14:15.21 |
GU.PCP.HHE. | ML:1.4 | 0.00002933286 | 0.3008 | AML | other | m | 2021-12-30T13:14:21.55 |