A magnitude ML 1.0 earthquake occured in region: 1 km S Marradi (FI), on
and geographic coordinates (lat, lon) 44.0640, 11.6150 at 6 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 | 8 | 1154 | 4293 |
Tredozio | FC | 11 | 1212 | 5505 |
Portico e San Benedetto | FC | 14 | 756 | 6261 |
San Godenzo | FI | 15 | 1167 | 7428 |
Premilcuore | FC | 16 | 799 | 8227 |
Modigliana | FC | 18 | 4560 | 12787 |
Casola Valsenio | RA | 18 | 2617 | 15404 |
Rocca San Casciano | FC | 18 | 1910 | 17314 |
Vicchio | FI | 19 | 8044 | 25358 |
Castel del Rio | BO | 19 | 1246 | 26604 |
Firenzuola | FI | 20 | 4726 | 31330 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2023-10-28 04:10:49 |
44.0638 | 11.6153 | 6 | 2023-10-28 04:26:51 |
Sala Sismica INGV-Roma | 122492771 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 04:10:49 ± 0.11 |
Latitude | 44.0638 ± 0.0036 |
Longitude | 11.6153 ± 0.0050 |
Depth (km) | 6 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122492771 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 408 |
Semi-minor axis of confidence ellipse (meter) | 130 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 307 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 410.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 104 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.23832 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 122492771 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 04:26:51 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHZ. | 2023-10-28T04:10:59.25 | 0.3 | undecidable | manual | S | 199 | 26.4513 | 102 | -0.06 | 72 |
IV.SFI.EHZ. | 2023-10-28T04:10:58.72 | 3.0 | undecidable | manual | P | 0 | ||||
IV.VISG.HHZ. | 2023-10-28T04:10:57.30 | 0.3 | undecidable | manual | S | 314 | 19.9689 | 106 | 0.16 | 71 |
IV.RINC.EHZ. | 2023-10-28T04:10:57.18 | 0.3 | undecidable | manual | S | 182 | 19.6692 | 106 | 0.14 | 72 |
IV.SEI.HHZ. | 2023-10-28T04:10:57.35 | 0.3 | undecidable | manual | S | 267 | 20.4684 | 106 | 0.04 | 73 |
IT.MOG.HNZ. | 2023-10-28T04:10:56.56 | 0.3 | undecidable | manual | S | 46 | 16.872 | 109 | 0.45 | 67 |
IV.VMGN.HHZ. | 2023-10-28T04:10:55.66 | 0.3 | undecidable | manual | S | 209 | 13.7751 | 113 | 0.55 | 66 |
IV.RINC.EHZ. | 2023-10-28T04:10:54.03 | 0.1 | undecidable | manual | P | 182 | 19.6692 | 106 | 0 | 98 |
IV.BOSL.HHZ. | 2023-10-28T04:10:54.89 | 0.1 | undecidable | manual | P | 233 | 24.2535 | 103 | -0.02 | 97 |
IV.VISG.HHZ. | 2023-10-28T04:10:54.05 | 0.1 | undecidable | manual | P | 314 | 19.9689 | 106 | -0.04 | 97 |
IV.RUFI.EHZ. | 2023-10-28T04:10:54.99 | 0.1 | undecidable | manual | P | 199 | 26.4513 | 102 | -0.35 | 90 |
IV.LMD.HHZ. | 2023-10-28T04:10:53.04 | 0.1 | undecidable | manual | S | 78 | 7.4814 | 127 | -0.15 | 97 |
IV.SEI.HHZ. | 2023-10-28T04:10:53.96 | 0.1 | undecidable | manual | P | 267 | 20.4684 | 106 | -0.23 | 94 |
IT.MOG.HNZ. | 2023-10-28T04:10:53.47 | 0.1 | undecidable | manual | P | 46 | 16.872 | 109 | -0.02 | 98 |
IV.VMGN.HHZ. | 2023-10-28T04:10:53.08 | 0.3 | positive | manual | P | 209 | 13.7751 | 113 | 0.16 | 72 |
IV.LMD.HHZ. | 2023-10-28T04:10:51.64 | 1.0 | undecidable | manual | P | 78 | 7.4814 | 127 | -0.17 | 24 |
IT.MRR.HGZ. | 2023-10-28T04:10:51.87 | 0.1 | undecidable | manual | S | 271 | 0.999 | 170 | -0.07 | 100 |
IT.MRR.HGZ. | 2023-10-28T04:10:50.97 | 0.1 | undecidable | manual | P | 271 | 0.999 | 170 | -0.12 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:0.8 | 0.0000771 | 1.58 | AML | other | m | 2023-10-28T04:10:56.01 |
IV.VMGN.HHN. | ML:0.7 | 0.00006715 | 1.58 | AML | other | m | 2023-10-28T04:10:56.83 |
IV.SEI.HHE. | ML:1.2 | 0.0001175 | 0.9 | AML | other | m | 2023-10-28T04:10:57.54 |
IV.SEI.HHN. | ML:1.5 | 0.00023549999999999998 | 1.66 | AML | other | m | 2023-10-28T04:10:57.88 |