A magnitude ML 1.0 earthquake occured in region: 1 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0680, 11.6210 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 | 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 | 17 | 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 1.0 | 2023-10-28 04:24:38 |
44.0683 | 11.621 | 7 | 2023-10-28 04:30:44 |
Sala Sismica INGV-Roma | 122492961 |
Field | Value |
---|---|
Time (UTC) | 2023-10-28 04:24:38 ± 0.1 |
Latitude | 44.0683 ± 0.0027 |
Longitude | 11.6210 ± 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 | 122492961 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 301 |
Semi-minor axis of confidence ellipse (meter) | 150 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 216 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 300.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 130 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.01349 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24372 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.5 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 122492961 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-28 04:30:44 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHZ. | 2023-10-28T04:24:48.33 | 0.3 | undecidable | manual | S | 199 | 27.0507 | 103 | -0.27 | 68 |
IV.SFI.EHZ. | 2023-10-28T04:24:48.12 | 0.3 | undecidable | manual | S | 135 | 25.5522 | 104 | 0.02 | 72 |
IV.RINC.EHZ. | 2023-10-28T04:24:46.43 | 0.1 | undecidable | manual | S | 183 | 20.1687 | 108 | 0.12 | 95 |
IV.VISG.HHZ. | 2023-10-28T04:24:46.31 | 0.1 | undecidable | manual | S | 312 | 19.9689 | 108 | 0.06 | 96 |
IV.SEI.HHZ. | 2023-10-28T04:24:46.59 | 0.1 | undecidable | manual | S | 266 | 20.9679 | 107 | 0.02 | 97 |
IV.VMGN.HHZ. | 2023-10-28T04:24:44.73 | 0.1 | undecidable | manual | S | 209 | 14.4744 | 114 | 0.29 | 93 |
IV.RUFI.EHZ. | 2023-10-28T04:24:44.28 | 0.1 | undecidable | manual | P | 199 | 27.0507 | 103 | -0.24 | 92 |
IV.SFI.EHZ. | 2023-10-28T04:24:44.01 | 0.1 | undecidable | manual | P | 135 | 25.5522 | 104 | -0.22 | 92 |
IV.BOSL.HHZ. | 2023-10-28T04:24:44.08 | 0.1 | undecidable | manual | P | 232 | 24.8529 | 105 | -0.02 | 96 |
IV.SEI.HHZ. | 2023-10-28T04:24:43.23 | 0.1 | positive | manual | P | 266 | 20.9679 | 107 | -0.12 | 95 |
IV.RINC.EHZ. | 2023-10-28T04:24:43.31 | 0.3 | undecidable | manual | P | 183 | 20.1687 | 108 | 0.11 | 72 |
IV.VISG.HHZ. | 2023-10-28T04:24:43.21 | 0.1 | undecidable | manual | P | 312 | 19.9689 | 108 | 0.05 | 97 |
IV.LMD.HHZ. | 2023-10-28T04:24:42.38 | 0.1 | undecidable | manual | S | 82 | 6.993 | 133 | 0.14 | 97 |
IV.VMGN.HHZ. | 2023-10-28T04:24:42.34 | 0.1 | positive | manual | P | 209 | 14.4744 | 114 | 0.22 | 94 |
IT.MRR.HGZ. | 2023-10-28T04:24:41.03 | 0.1 | undecidable | manual | S | 252 | 1.4985 | 167 | -0.22 | 96 |
IV.LMD.HHZ. | 2023-10-28T04:24:40.90 | 0.1 | undecidable | manual | P | 82 | 6.993 | 133 | 0.05 | 99 |
IT.MRR.HGZ. | 2023-10-28T04:24:40.24 | 0.1 | undecidable | manual | P | 252 | 1.4985 | 167 | -0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SEI.HHE. | ML:1.4 | 0.00017999999999999998 | 0.24 | AML | other | m | 2023-10-28T04:24:46.72 |
IV.SEI.HHN. | ML:1.6 | 0.0003305 | 1.8 | AML | other | m | 2023-10-28T04:24:46.94 |
IV.VMGN.HHE. | ML:0.6 | 0.000045599004999999995 | 0.8608 | AML | other | m | 2023-10-28T04:24:45.38 |
IV.VMGN.HHN. | ML:0.5 | 0.000035725109999999995 | 1.6192 | AML | other | m | 2023-10-28T04:24:44.77 |