A magnitude ML 0.8 earthquake occured in region: 6 km SW Tredozio (FC), on
and geographic coordinates (lat, lon) 44.0400, 11.6920 at 8 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 |
---|---|---|---|---|
Tredozio | FC | 6 | 1212 | 1212 |
Portico e San Benedetto | FC | 7 | 756 | 1968 |
Marradi | FI | 8 | 3139 | 5107 |
Premilcuore | FC | 10 | 799 | 5906 |
Rocca San Casciano | FC | 12 | 1910 | 7816 |
San Godenzo | FI | 14 | 1167 | 8983 |
Palazzuolo sul Senio | FI | 14 | 1154 | 10137 |
Modigliana | FC | 15 | 4560 | 14697 |
Galeata | FC | 18 | 2516 | 17213 |
Dovadola | FC | 18 | 1653 | 18866 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2023-09-21 09:21:32 |
44.0397 | 11.6923 | 8 | 2023-09-21 09:34:44 |
Sala Sismica INGV-Roma | 121306861 |
Field | Value |
---|---|
Time (UTC) | 2023-09-21 09:21:32 ± 0.11 |
Latitude | 44.0397 ± 0.0027 |
Longitude | 11.6923 ± 0.0038 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121306861 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 330 |
Semi-minor axis of confidence ellipse (meter) | 114 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 108 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 330.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 118 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.03957 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25361 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 121306861 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-21 09:34:44 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SEI.HHZ. | 2023-09-21T09:21:42.21 | 0.6 | undecidable | manual | S | 274 | 26.6511 | 107 | 0.11 | 48 |
IV.VISG.HHZ. | 2023-09-21T09:21:42.12 | 0.6 | undecidable | manual | S | 309 | 26.3514 | 107 | 0.11 | 48 |
IV.BOSL.HHZ. | 2023-09-21T09:21:42.42 | 0.6 | undecidable | manual | S | 245 | 28.1496 | 106 | -0.16 | 48 |
IV.RUFI.EHZ. | 2023-09-21T09:21:42.05 | 0.6 | undecidable | manual | S | 213 | 26.751 | 107 | -0.07 | 49 |
IV.SFI.EHZ. | 2023-09-21T09:21:39.77 | 0.6 | undecidable | manual | S | 140 | 19.3695 | 113 | 0.04 | 50 |
IV.RINC.EHZ. | 2023-09-21T09:21:39.46 | 0.6 | undecidable | manual | S | 202 | 18.2706 | 114 | 0.08 | 49 |
IT.MOG.HNZ. | 2023-09-21T09:21:38.88 | 0.6 | undecidable | manual | S | 22 | 15.6732 | 117 | 0.33 | 47 |
IV.VMGN.HHZ. | 2023-09-21T09:21:38.98 | 0.6 | undecidable | manual | S | 233 | 15.873 | 117 | 0.37 | 47 |
IV.BOSL.HHZ. | 2023-09-21T09:21:38.11 | 0.1 | undecidable | manual | P | 245 | 28.1496 | 106 | -0.18 | 95 |
IV.RUFI.EHZ. | 2023-09-21T09:21:37.86 | 0.1 | undecidable | manual | P | 213 | 26.751 | 107 | -0.17 | 95 |
IV.SEI.HHZ. | 2023-09-21T09:21:37.77 | 0.6 | negative | manual | P | 274 | 26.6511 | 107 | -0.25 | 47 |
IV.VISG.HHZ. | 2023-09-21T09:21:37.80 | 0.6 | negative | manual | P | 309 | 26.3514 | 107 | -0.16 | 48 |
IV.RINC.EHZ. | 2023-09-21T09:21:36.58 | 0.3 | positive | manual | P | 202 | 18.2706 | 114 | 0.13 | 73 |
IT.MRR.HGZ. | 2023-09-21T09:21:36.22 | 0.6 | undecidable | manual | S | 291 | 7.5813 | 137 | -0.06 | 50 |
IV.SFI.EHZ. | 2023-09-21T09:21:36.62 | 0.1 | positive | manual | P | 140 | 19.3695 | 113 | -0.02 | 99 |
IV.VMGN.HHZ. | 2023-09-21T09:21:36.23 | 0.3 | positive | manual | P | 233 | 15.873 | 117 | 0.23 | 72 |
IV.LMD.HHZ. | 2023-09-21T09:21:35.21 | 0.6 | undecidable | manual | S | 16 | 4.3956 | 152 | -0.41 | 47 |
IT.MOG.HNZ. | 2023-09-21T09:21:35.99 | 0.1 | undecidable | manual | P | 22 | 15.6732 | 117 | 0.03 | 100 |
IV.LMD.HHZ. | 2023-09-21T09:21:34.07 | 1.0 | undecidable | manual | P | 16 | 4.3956 | 152 | -0.2 | 25 |
IT.MRR.HGZ. | 2023-09-21T09:21:34.80 | 0.1 | undecidable | manual | P | 291 | 7.5813 | 137 | 0.15 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:0.0 | 0.0025652495 | 0.16 | AML | other | m | 2023-09-21T09:21:35.26 |
IV.LMD.HHN. | ML:0.0 | 0.0015179187500000003 | 0.2816 | AML | other | m | 2023-09-21T09:21:35.35 |
IV.VMGN.HHN. | ML:0.9 | 0.00007314999999999999 | 0.1 | AML | other | m | 2023-09-21T09:21:39.28 |
IV.VMGN.HHE. | ML:0.7 | 0.000049922485 | 0.1024 | AML | other | m | 2023-09-21T09:21:39.25 |
IV.SFI.EHN. | ML:0.9 | 0.000058443345 | 0.2432 | AML | other | m | 2023-09-21T09:21:39.89 |
IV.SFI.EHE. | ML:0.8 | 0.000050772555 | 0.16 | AML | other | m | 2023-09-21T09:21:40.27 |
IV.SEI.HHN. | ML:1.2 | 0.00008568859000000001 | 0.2624 | AML | other | m | 2023-09-21T09:21:43.55 |
IV.SEI.HHE. | ML:0.8 | 0.000034917795 | 0.3008 | AML | other | m | 2023-09-21T09:21:46.44 |
IV.RINC.EHE. | ML:0.6 | 0.000036797095 | 0.256 | AML | other | m | 2023-09-21T09:21:40.72 |
IV.RINC.EHN. | ML:0.7 | 0.000043074995499999994 | 0.416 | AML | other | m | 2023-09-21T09:21:41.41 |
IV.SFI.HNE. | ML:1.2 | 0.0001209917 | 0.8896 | AML | other | m | 2023-09-21T09:21:46.13 |
IV.SFI.HNN. | ML:1.2 | 0.000128202865 | 0.9984 | AML | other | m | 2023-09-21T09:21:40.27 |
IV.VISG.HHE. | ML:0.2 | 0.000009542023735 | 0.1024 | AML | other | m | 2023-09-21T09:21:43.45 |
IV.VISG.HHN. | ML:0.5 | 0.000017730534999999998 | 0.0832 | AML | other | m | 2023-09-21T09:21:42.89 |