A magnitude ML 1.0 earthquake occured in region: Marradi (FI), on
and geographic coordinates (lat, lon) 44.0750, 11.6180 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 | 0 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 7 | 1154 | 4293 |
Tredozio | FC | 10 | 1212 | 5505 |
Portico e San Benedetto | FC | 14 | 756 | 6261 |
San Godenzo | FI | 16 | 1167 | 7428 |
Casola Valsenio | RA | 17 | 2617 | 10045 |
Premilcuore | FC | 17 | 799 | 10844 |
Modigliana | FC | 17 | 4560 | 15404 |
Castel del Rio | BO | 18 | 1246 | 16650 |
Rocca San Casciano | FC | 18 | 1910 | 18560 |
Firenzuola | FI | 20 | 4726 | 23286 |
Vicchio | FI | 20 | 8044 | 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 17:55:26 |
44.0748 | 11.6183 | 7 | 2023-09-18 18:07:28 |
Sala Sismica INGV-Roma | 121201441 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 17:55:26 ± 0.08 |
Latitude | 44.0748 ± 0.0036 |
Longitude | 11.6183 ± 0.0050 |
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 | 121201441 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 370 |
Semi-minor axis of confidence ellipse (meter) | 224 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 77 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 370.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 97 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.01529 |
Epicentral distance of station farthest from the epicenter (degree) | 0.51531 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 121201441 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 18:07:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CRE.HHN. | 2023-09-18T17:55:45.37 | 0.1 | undecidable | manual | S | 152 | 57.1983 | 50 | 0.35 | 85 |
IV.RUFI.EHZ. | 2023-09-18T17:55:36.03 | 0.3 | undecidable | manual | S | 198 | 27.6501 | 104 | -0.2 | 70 |
IV.CRE.HHN. | 2023-09-18T17:55:36.54 | 0.1 | undecidable | manual | P | 152 | 57.1983 | 50 | -0.59 | 80 |
IV.SFI.EHZ. | 2023-09-18T17:55:35.89 | 0.6 | undecidable | manual | S | 136 | 26.2515 | 105 | 0.13 | 47 |
IV.RINC.EHZ. | 2023-09-18T17:55:34.21 | 1.0 | undecidable | manual | S | 182 | 20.9679 | 108 | 0.23 | 23 |
IV.SEI.HHZ. | 2023-09-18T17:55:34.07 | 0.6 | undecidable | manual | S | 264 | 20.868 | 108 | 0.12 | 48 |
IV.MOCL.EHZ. | 2023-09-18T17:55:33.49 | 0.6 | undecidable | manual | P | 258 | 35.742 | 101 | -0.15 | 46 |
IV.VISG.HHZ. | 2023-09-18T17:55:33.66 | 0.1 | undecidable | manual | S | 311 | 19.3695 | 109 | 0.19 | 94 |
IV.VMGN.HHZ. | 2023-09-18T17:55:32.51 | 0.3 | undecidable | manual | S | 207 | 14.9739 | 114 | 0.45 | 67 |
IT.MOG.HNE. | 2023-09-18T17:55:32.65 | 0.3 | undecidable | manual | S | 48 | 15.873 | 113 | 0.31 | 69 |
IV.RUFI.EHZ. | 2023-09-18T17:55:31.85 | 0.3 | positive | manual | P | 198 | 27.6501 | 104 | -0.2 | 70 |
IV.SFI.EHZ. | 2023-09-18T17:55:31.56 | 1.0 | positive | manual | P | 136 | 26.2515 | 105 | -0.22 | 23 |
IV.VISG.HHZ. | 2023-09-18T17:55:30.31 | 0.1 | positive | manual | P | 311 | 19.3695 | 109 | -0.15 | 95 |
IV.SEI.HHZ. | 2023-09-18T17:55:30.64 | 1.0 | positive | manual | P | 264 | 20.868 | 108 | -0.1 | 24 |
IV.RINC.EHZ. | 2023-09-18T17:55:30.83 | 1.0 | undecidable | manual | P | 182 | 20.9679 | 108 | 0.07 | 24 |
IV.LMD.HHZ. | 2023-09-18T17:55:29.73 | 0.3 | undecidable | manual | S | 88 | 7.0929 | 134 | -0.03 | 75 |
IT.MOG.HNE. | 2023-09-18T17:55:29.79 | 0.1 | undecidable | manual | P | 48 | 15.873 | 113 | -0.02 | 98 |
IV.VMGN.HHZ. | 2023-09-18T17:55:29.90 | 0.3 | positive | manual | P | 207 | 14.9739 | 114 | 0.25 | 70 |
IT.MRR.HGE. | 2023-09-18T17:55:28.59 | 0.1 | undecidable | manual | S | 225 | 1.6983 | 166 | -0.19 | 97 |
IV.LMD.HHZ. | 2023-09-18T17:55:28.28 | 0.1 | negative | manual | P | 88 | 7.0929 | 134 | -0.04 | 99 |
IT.MRR.HGE. | 2023-09-18T17:55:27.70 | 0.1 | undecidable | manual | P | 225 | 1.6983 | 166 | -0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:0.0 | 0.000344404 | 0.1408 | AML | other | m | 2023-09-18T17:55:30.62 |
IV.LMD.HHN. | ML:0.0 | 0.00048442715000000005 | 0.0768 | AML | other | m | 2023-09-18T17:55:30.25 |
IV.VMGN.HHE. | ML:0.7 | 0.000056928285 | 0.1408 | AML | other | m | 2023-09-18T17:55:32.58 |
IV.VMGN.HHN. | ML:0.8 | 0.00006460558 | 0.3712 | AML | other | m | 2023-09-18T17:55:34.93 |
IV.VISG.HHE. | ML:0.9 | 0.000068396865 | 0.1408 | AML | other | m | 2023-09-18T17:55:33.93 |
IV.VISG.HHN. | ML:1.0 | 0.000087687245 | 0.1152 | AML | other | m | 2023-09-18T17:55:34.10 |
IV.SEI.HHN. | ML:1.6 | 0.00033259945000000004 | 0.2432 | AML | other | m | 2023-09-18T17:55:34.50 |
IV.SFI.EHE. | ML:1.1 | 0.000081375265 | 0.2432 | AML | other | m | 2023-09-18T17:55:36.70 |