A magnitude ML 0.9 earthquake occured in region: 2 km W Premilcuore (FC), on
and geographic coordinates (lat, lon) 43.9840, 11.7530 at 8 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 |
---|---|---|---|---|
Premilcuore | FC | 2 | 799 | 799 |
Portico e San Benedetto | FC | 5 | 756 | 1555 |
Tredozio | FC | 11 | 1212 | 2767 |
Rocca San Casciano | FC | 11 | 1910 | 4677 |
San Godenzo | FI | 12 | 1167 | 5844 |
Galeata | FC | 13 | 2516 | 8360 |
Santa Sofia | FC | 13 | 4136 | 12496 |
Civitella di Romagna | FC | 15 | 3786 | 16282 |
Marradi | FI | 15 | 3139 | 19421 |
Dovadola | FC | 19 | 1653 | 21074 |
Modigliana | FC | 20 | 4560 | 25634 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.9 | 2021-12-09 11:02:48 |
43.9842 | 11.7533 | 8 | 2022-03-30 13:04:27 |
Bollettino Sismico Italiano INGV | 99435821 |
Reviewed Rev100 |
ML 1.4 | 2021-12-09 11:02:48 |
43.9733 | 11.7872 | 13 | 2021-12-09 11:07:02 |
Sala Sismica INGV-Roma | 98341821 |
Field | Value |
---|---|
Time (UTC) | 2021-12-09 11:02:48 ± 0.28 |
Latitude | 43.9842 ± 0.0045 |
Longitude | 11.7533 ± 0.0100 |
Depth (km) | 8 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 99435821 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 753 |
Semi-minor axis of confidence ellipse (meter) | 321 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 250 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 750.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 138 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.09893 |
Epicentral distance of station farthest from the epicenter (degree) | 0.30757 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 98341821 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-09 11:07:02 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.4 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 99435821 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-01-07 10:38:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VISG.HHZ. | 2021-12-09T11:03:00.94 | 0.6 | undecidable | manual | S | 312 | 34.1436 | 103 | 0.03 | 57 |
IV.SEI.HHZ. | 2021-12-09T11:03:00.44 | 0.3 | undecidable | manual | S | 284 | 32.4453 | 104 | 0.09 | 84 |
IV.BRIS.HHZ. | 2021-12-09T11:02:59.46 | 0.6 | undecidable | manual | S | 2 | 26.6511 | 107 | 1.03 | 42 |
IV.RUFI.EHZ. | 2021-12-09T11:02:57.87 | 0.3 | undecidable | manual | S | 230 | 25.3524 | 108 | -0.11 | 85 |
IV.ASQU.HHZ. | 2021-12-09T11:02:56.61 | 0.3 | undecidable | manual | S | 172 | 20.9679 | 111 | 0.06 | 87 |
IV.VISG.HHZ. | 2021-12-09T11:02:56.38 | 0.6 | undecidable | manual | P | 312 | 34.1436 | 103 | 0.61 | 49 |
IV.SEI.HHZ. | 2021-12-09T11:02:55.42 | 0.6 | undecidable | manual | P | 284 | 32.4453 | 104 | -0.02 | 57 |
IV.RUFI.EHZ. | 2021-12-09T11:02:54.03 | 0.3 | undecidable | manual | P | 230 | 25.3524 | 108 | -0.04 | 86 |
IV.BRIS.HHZ. | 2021-12-09T11:02:53.73 | 0.1 | undecidable | manual | P | 2 | 26.6511 | 107 | -0.6 | 100 |
IV.SFI.EHZ. | 2021-12-09T11:02:53.73 | 0.6 | undecidable | manual | S | 140 | 11.5773 | 125 | 0.09 | 58 |
IV.LMD.HHE. | 2021-12-09T11:02:53.34 | 0.3 | undecidable | manual | S | 340 | 10.9779 | 127 | -0.15 | 86 |
IV.ASQU.HHZ. | 2021-12-09T11:02:53.26 | 0.3 | undecidable | manual | P | 172 | 20.9679 | 111 | 0.01 | 87 |
IV.LMD.HHE. | 2021-12-09T11:02:51.28 | 0.3 | undecidable | manual | P | 340 | 10.9779 | 127 | -0.2 | 86 |
IV.SFI.EHZ. | 2021-12-09T11:02:51.68 | 0.3 | undecidable | manual | P | 140 | 11.5773 | 125 | 0.11 | 87 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SFI.EHN. | ML:1.2 | 0.0001945 | 0.14 | AML | other | m | 2021-12-09T11:02:53.93 |
IV.SFI.EHE. | ML:0.9 | 0.000094150305 | 0.1664 | AML | other | m | 2021-12-09T11:02:54.20 |
IV.BRIS.HHE. | ML:1.4 | 0.00013607470999999998 | 0.1216 | AML | other | m | 2021-12-09T11:02:59.69 |
IV.BRIS.HHN. | ML:1.4 | 0.00015875975 | 0.224 | AML | other | m | 2021-12-09T11:02:59.70 |
IV.SFI.HNN. | ML:1.2 | 0.00021343621 | 0.1344 | AML | other | m | 2021-12-09T11:02:53.92 |
IV.SFI.HNE. | ML:0.8 | 0.000090173598 | 0.1024 | AML | other | m | 2021-12-09T11:02:53.81 |
IV.ASQU.HHE. | ML:0.7 | 0.000038695435 | 0.16 | AML | other | m | 2021-12-09T11:02:57.40 |
IV.ASQU.HHN. | ML:0.7 | 0.000041699255 | 0.1984 | AML | other | m | 2021-12-09T11:02:57.64 |
IV.RUFI.EHN. | ML:0.2 | 0.000012013464999999999 | 0.096 | AML | other | m | 2021-12-09T11:02:58.87 |
IV.RUFI.EHE. | ML:0.2 | 0.000011887456 | 0.0768 | AML | other | m | 2021-12-09T11:02:58.34 |
IV.SEI.HHE. | ML:1.0 | 0.000048729614999999996 | 0.224 | AML | other | m | 2021-12-09T11:03:01.19 |
IV.SEI.HHN. | ML:1.4 | 0.00012497224500000002 | 0.2944 | AML | other | m | 2021-12-09T11:03:00.80 |
IV.VISG.HHN. | ML:0.4 | 0.000011137350000000001 | 0.096 | AML | other | m | 2021-12-09T11:03:02.12 |
IV.VISG.HHE. | ML:0.4 | 0.0000089862065 | 0.1408 | AML | other | m | 2021-12-09T11:03:02.21 |