A magnitude ML 1.1 earthquake occured in region: 4 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0710, 11.6600 at 8 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 | 4 | 3139 | 3139 |
Tredozio | FC | 7 | 1212 | 4351 |
Palazzuolo sul Senio | FI | 10 | 1154 | 5505 |
Portico e San Benedetto | FC | 11 | 756 | 6261 |
Premilcuore | FC | 14 | 799 | 7060 |
Modigliana | FC | 14 | 4560 | 11620 |
Rocca San Casciano | FC | 15 | 1910 | 13530 |
San Godenzo | FI | 16 | 1167 | 14697 |
Casola Valsenio | RA | 17 | 2617 | 17314 |
Brisighella | RA | 19 | 7639 | 24953 |
Dovadola | FC | 19 | 1653 | 26606 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2023-09-18 18:42:23 |
44.0708 | 11.6597 | 8 | 2023-09-18 18:52:11 |
Sala Sismica INGV-Roma | 121202951 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 18:42:23 ± 0.11 |
Latitude | 44.0708 ± 0.0036 |
Longitude | 11.6597 ± 0.0050 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121202951 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 397 |
Semi-minor axis of confidence ellipse (meter) | 139 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 144 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 400.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 92 |
Number of associated phases, regardless of their use for origin computation | 24 |
Number of defining phases | 22 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.49822 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 121202951 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 18:52:11 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BRSN.EHN. | 2023-09-18T18:42:38.93 | 3.0 | undecidable | manual | S | -0.4 | 0 | |||
IV.BOSL.HHZ. | 2023-09-18T18:42:33.19 | 0.3 | undecidable | manual | S | 236 | 27.5502 | 106 | 0.09 | 72 |
IV.CRE.HHZ. | 2023-09-18T18:42:33.26 | 0.3 | positive | manual | P | 155 | 55.3002 | 50 | -0.27 | 66 |
IV.RUFI.EHZ. | 2023-09-18T18:42:33.23 | 0.6 | undecidable | manual | S | 205 | 28.4493 | 105 | -0.18 | 47 |
IV.RINC.EHZ. | 2023-09-18T18:42:31.34 | 0.3 | undecidable | manual | S | 192 | 20.868 | 110 | 0.45 | 67 |
IV.VISG.HHZ. | 2023-09-18T18:42:31.59 | 0.1 | undecidable | manual | S | 306 | 22.2555 | 109 | 0.26 | 94 |
IV.SFI.EHE. | 2023-09-18T18:42:31.92 | 0.1 | undecidable | manual | S | 141 | 23.754 | 108 | 0.1 | 96 |
IV.SEI.HHZ. | 2023-09-18T18:42:31.93 | 0.3 | undecidable | manual | S | 266 | 24.0537 | 108 | -0.01 | 74 |
IV.MOCL.EHZ. | 2023-09-18T18:42:30.83 | 1.0 | positive | manual | P | 259 | 38.9277 | 50 | -0.17 | 23 |
IV.BRSN.EHN. | 2023-09-18T18:42:30.70 | 3.0 | undecidable | manual | P | -1.66 | 0 | |||
IV.VMGN.HHZ. | 2023-09-18T18:42:29.79 | 0.1 | undecidable | manual | S | 218 | 16.3725 | 115 | 0.33 | 93 |
IT.MOG.HNE. | 2023-09-18T18:42:29.13 | 0.3 | undecidable | manual | S | 38 | 13.9749 | 119 | 0.43 | 69 |
IV.SFI.EHE. | 2023-09-18T18:42:28.10 | 0.1 | positive | manual | P | 141 | 23.754 | 108 | -0.06 | 97 |
IV.RUFI.EHZ. | 2023-09-18T18:42:28.89 | 0.1 | positive | manual | P | 205 | 28.4493 | 105 | -0.19 | 94 |
IV.BOSL.HHZ. | 2023-09-18T18:42:28.91 | 0.6 | undecidable | manual | P | 236 | 27.5502 | 106 | 0.01 | 49 |
IV.SEI.HHZ. | 2023-09-18T18:42:27.58 | 0.3 | undecidable | manual | P | 266 | 24.0537 | 108 | -0.65 | 63 |
IV.RINC.EHZ. | 2023-09-18T18:42:27.72 | 0.3 | positive | manual | P | 192 | 20.868 | 110 | 0.09 | 73 |
IV.VISG.HHZ. | 2023-09-18T18:42:27.81 | 0.3 | undecidable | manual | P | 306 | 22.2555 | 109 | -0.07 | 73 |
IV.VMGN.HHZ. | 2023-09-18T18:42:26.98 | 0.3 | undecidable | manual | P | 218 | 16.3725 | 115 | 0.18 | 72 |
IT.MRR.HGE. | 2023-09-18T18:42:26.06 | 0.3 | undecidable | manual | S | 261 | 4.5954 | 150 | -0.22 | 73 |
IT.MOG.HNE. | 2023-09-18T18:42:26.63 | 0.1 | undecidable | manual | P | 38 | 13.9749 | 119 | 0.27 | 95 |
IV.LMD.HHZ. | 2023-09-18T18:42:25.70 | 0.3 | undecidable | manual | S | 79 | 3.8961 | 154 | -0.47 | 69 |
IT.MRR.HGE. | 2023-09-18T18:42:24.88 | 0.1 | undecidable | manual | P | 261 | 4.5954 | 150 | -0.08 | 100 |
IV.LMD.HHZ. | 2023-09-18T18:42:24.74 | 0.1 | undecidable | manual | P | 79 | 3.8961 | 154 | -0.16 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHN. | ML:0.9 | 0.0000745 | 0.08 | AML | other | m | 2023-09-18T18:42:29.88 |
IV.VMGN.HHE. | ML:1.0 | 0.00008305000000000001 | 1.56 | AML | other | m | 2023-09-18T18:42:30.86 |
IV.VISG.HHE. | ML:1.0 | 0.00007185 | 0.3 | AML | other | m | 2023-09-18T18:42:31.76 |
IV.SFI.EHN. | ML:1.2 | 0.0001007 | 0.2 | AML | other | m | 2023-09-18T18:42:32.15 |
IV.SEI.HHE. | ML:1.4 | 0.000177 | 0.24 | AML | other | m | 2023-09-18T18:42:32.11 |
IV.VISG.HHN. | ML:1.0 | 0.00006555 | 0.84 | AML | other | m | 2023-09-18T18:42:32.71 |
IV.SFI.EHE. | ML:1.2 | 0.0001064 | 0.42 | AML | other | m | 2023-09-18T18:42:32.42 |
IV.BOSL.HHE. | ML:0.7 | 0.000029699999999999997 | 0.98 | AML | other | m | 2023-09-18T18:42:33.84 |
IV.SEI.HHN. | ML:1.7 | 0.000292 | 0.42 | AML | other | m | 2023-09-18T18:42:33.59 |
IV.BOSL.HHN. | ML:0.9 | 0.00004225 | 0.54 | AML | other | m | 2023-09-18T18:42:34.77 |
IV.CRE.HHE. | ML:1.0 | 0.000026299999999999996 | 0.6 | AML | other | m | 2023-09-18T18:42:41.71 |
IV.CRE.HHN. | ML:1.6 | 0.0000924 | 0.2 | AML | other | m | 2023-09-18T18:42:41.78 |