A magnitude ML 1.0 earthquake occured in region: 1 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0700, 11.6010 at 10 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 |
---|---|---|---|---|
Marradi | FI | 1 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 6 | 1154 | 4293 |
Tredozio | FC | 12 | 1212 | 5505 |
Portico e San Benedetto | FC | 15 | 756 | 6261 |
San Godenzo | FI | 16 | 1167 | 7428 |
Casola Valsenio | RA | 17 | 2617 | 10045 |
Premilcuore | FC | 17 | 799 | 10844 |
Castel del Rio | BO | 18 | 1246 | 12090 |
Modigliana | FC | 18 | 4560 | 16650 |
Vicchio | FI | 19 | 8044 | 24694 |
Firenzuola | FI | 19 | 4726 | 29420 |
Rocca San Casciano | FC | 19 | 1910 | 31330 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2023-09-18 22:31:40 |
44.0695 | 11.6013 | 10 | 2023-09-18 22:36:30 |
Sala Sismica INGV-Roma | 121210401 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 22:31:40 ± 0.1 |
Latitude | 44.0695 ± 0.0054 |
Longitude | 11.6013 ± 0.0063 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121210401 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 528 |
Semi-minor axis of confidence ellipse (meter) | 467 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 7 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 530.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 129 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.51621 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 121210401 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 22:36:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CRE.HHZ. | 2023-09-18T22:31:59.12 | 0.3 | undecidable | manual | S | 151 | 57.2982 | 50 | 0.8 | 56 |
IV.RSM2.HHZ. | 2023-09-18T22:31:51.25 | 3.0 | undecidable | manual | P | -0.25 | 0 | |||
IV.SFI.EHZ. | 2023-09-18T22:31:50.03 | 0.3 | undecidable | manual | S | 133 | 26.751 | 50 | -0.14 | 73 |
IV.CRE.HHZ. | 2023-09-18T22:31:50.80 | 0.6 | undecidable | manual | P | 151 | 57.2982 | 50 | 0.09 | 46 |
IV.RUFI.EHZ. | 2023-09-18T22:31:49.87 | 0.3 | undecidable | manual | S | 196 | 26.751 | 50 | -0.28 | 71 |
IV.RINC.EHZ. | 2023-09-18T22:31:48.07 | 0.3 | undecidable | manual | S | 179 | 20.2686 | 116 | -0.09 | 74 |
IV.SEI.HHZ. | 2023-09-18T22:31:47.77 | 0.3 | undecidable | manual | S | 265 | 19.4694 | 117 | -0.12 | 74 |
IV.VISG.HHZ. | 2023-09-18T22:31:47.94 | 0.3 | undecidable | manual | S | 315 | 18.7701 | 118 | 0.25 | 72 |
IV.VMGN.HHZ. | 2023-09-18T22:31:46.50 | 0.1 | undecidable | manual | S | 203 | 13.875 | 126 | 0.26 | 97 |
IV.RUFI.EHZ. | 2023-09-18T22:31:45.79 | 0.1 | undecidable | manual | P | 196 | 26.751 | 50 | -0.2 | 96 |
IV.SFI.EHZ. | 2023-09-18T22:31:45.85 | 1.0 | positive | manual | P | 133 | 26.751 | 50 | -0.15 | 24 |
IV.VISG.HHZ. | 2023-09-18T22:31:44.65 | 1.0 | undecidable | manual | P | 315 | 18.7701 | 118 | 0.08 | 25 |
IV.RINC.EHZ. | 2023-09-18T22:31:44.79 | 0.1 | undecidable | manual | P | 179 | 20.2686 | 116 | -0.05 | 100 |
IV.SEI.HHZ. | 2023-09-18T22:31:44.55 | 0.6 | undecidable | manual | P | 265 | 19.4694 | 117 | -0.14 | 49 |
IV.LMD.HHZ. | 2023-09-18T22:31:44.71 | 0.1 | undecidable | manual | S | 84 | 8.4804 | 140 | -0.14 | 100 |
IV.VMGN.HHZ. | 2023-09-18T22:31:43.67 | 1.0 | undecidable | manual | P | 203 | 13.875 | 126 | -0.06 | 25 |
IV.LMD.HHZ. | 2023-09-18T22:31:42.95 | 1.0 | undecidable | manual | P | 84 | 8.4804 | 140 | 0.02 | 26 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:1.2 | 0.00020150000000000002 | 0.16 | AML | other | m | 2023-09-18T22:31:44.81 |
IV.LMD.HHN. | ML:1.4 | 0.0003265 | 0.3 | AML | other | m | 2023-09-18T22:31:44.76 |
IV.VMGN.HHN. | ML:0.6 | 0.00004615 | 0.54 | AML | other | m | 2023-09-18T22:31:47.49 |
IV.VMGN.HHE. | ML:0.6 | 0.000041099999999999996 | 0.78 | AML | other | m | 2023-09-18T22:31:47.25 |
IV.SEI.HHE. | ML:1.2 | 0.00011580000000000001 | 1.54 | AML | other | m | 2023-09-18T22:31:47.98 |
IV.VISG.HHN. | ML:0.9 | 0.000058099999999999996 | 1 | AML | other | m | 2023-09-18T22:31:48.68 |
IV.VISG.HHE. | ML:0.6 | 0.0000305 | 1.32 | AML | other | m | 2023-09-18T22:31:48.30 |
IV.SEI.HHN. | ML:1.4 | 0.0001715 | 0.38 | AML | other | m | 2023-09-18T22:31:49.74 |