A magnitude ML 1.1 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0670, 11.6220 at 7 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 | 10 | 1212 | 5505 |
Portico e San Benedetto | FC | 14 | 756 | 6261 |
San Godenzo | FI | 16 | 1167 | 7428 |
Premilcuore | FC | 16 | 799 | 8227 |
Modigliana | FC | 17 | 4560 | 12787 |
Casola Valsenio | RA | 18 | 2617 | 15404 |
Rocca San Casciano | FC | 18 | 1910 | 17314 |
Castel del Rio | BO | 19 | 1246 | 18560 |
Vicchio | FI | 19 | 8044 | 26604 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2023-10-28 03:56:04 |
44.0673 | 11.6218 | 7 | 2023-10-28 04:03:58 |
Sala Sismica INGV-Roma | 122491551 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 03:56:04 ± 0.11 |
Latitude | 44.0673 ± 0.0036 |
Longitude | 11.6218 ± 0.0038 |
Depth (km) | 7 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122491551 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 348 |
Semi-minor axis of confidence ellipse (meter) | 176 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 220 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 350.0 |
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 | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.01349 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24282 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 122491551 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 04:03:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SFI.EHZ. | 2023-10-28T03:56:14.11 | 0.3 | undecidable | manual | S | 135 | 25.4523 | 105 | 0.04 | 72 |
IV.RUFI.EHZ. | 2023-10-28T03:56:14.38 | 0.3 | undecidable | manual | S | 199 | 26.9508 | 104 | -0.2 | 70 |
IV.SEI.HHZ. | 2023-10-28T03:56:12.54 | 0.3 | undecidable | manual | S | 266 | 21.0678 | 108 | -0.06 | 72 |
IV.VISG.HHZ. | 2023-10-28T03:56:12.51 | 0.3 | undecidable | manual | S | 312 | 20.1687 | 109 | 0.22 | 70 |
IV.RINC.EHZ. | 2023-10-28T03:56:12.44 | 0.3 | undecidable | manual | S | 183 | 20.0688 | 109 | 0.15 | 71 |
IV.VMGN.HHZ. | 2023-10-28T03:56:10.72 | 0.3 | undecidable | manual | S | 210 | 14.3745 | 115 | 0.27 | 70 |
IV.SFI.EHZ. | 2023-10-28T03:56:10.01 | 0.1 | undecidable | manual | P | 135 | 25.4523 | 105 | -0.19 | 93 |
IV.RUFI.EHZ. | 2023-10-28T03:56:10.20 | 0.1 | undecidable | manual | P | 199 | 26.9508 | 104 | -0.3 | 91 |
IV.VISG.HHZ. | 2023-10-28T03:56:09.14 | 0.3 | undecidable | manual | P | 312 | 20.1687 | 109 | -0.04 | 73 |
IV.RINC.EHZ. | 2023-10-28T03:56:09.50 | 0.3 | undecidable | manual | P | 183 | 20.0688 | 109 | 0.32 | 69 |
IV.SEI.HHZ. | 2023-10-28T03:56:09.25 | 0.3 | undecidable | manual | P | 266 | 21.0678 | 108 | -0.11 | 72 |
IV.LMD.HHZ. | 2023-10-28T03:56:08.37 | 0.3 | undecidable | manual | S | 81 | 6.8931 | 135 | 0.09 | 74 |
IV.VMGN.HHZ. | 2023-10-28T03:56:08.32 | 0.3 | positive | manual | P | 210 | 14.3745 | 115 | 0.2 | 71 |
IT.MRR.HGZ. | 2023-10-28T03:56:07.18 | 0.1 | undecidable | manual | S | 256 | 1.4985 | 167 | -0.16 | 98 |
IV.LMD.HHZ. | 2023-10-28T03:56:06.90 | 0.1 | undecidable | manual | P | 81 | 6.8931 | 135 | 0.04 | 99 |
IT.MRR.HGZ. | 2023-10-28T03:56:06.27 | 0.1 | undecidable | manual | P | 256 | 1.4985 | 167 | -0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:1.0 | 0.00011505000000000002 | 0.36 | AML | other | m | 2023-10-28T03:56:11.34 |
IV.VMGN.HHN. | ML:1.1 | 0.00014350000000000002 | 0.4 | AML | other | m | 2023-10-28T03:56:11.37 |
IV.SEI.HHE. | ML:1.4 | 0.00019700000000000002 | 0.2 | AML | other | m | 2023-10-28T03:56:12.86 |
IV.SEI.HHN. | ML:1.7 | 0.00034399999999999996 | 0.5 | AML | other | m | 2023-10-28T03:56:14.61 |
IV.VISG.HHE. | ML:0.7 | 0.000041099155 | 0.1216 | AML | other | m | 2023-10-28T03:56:13.04 |
IV.VISG.HHN. | ML:1.0 | 0.00006864483999999999 | 0.16 | AML | other | m | 2023-10-28T03:56:13.86 |