A magnitude ML 0.9 earthquake occured in region: 4 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0680, 11.6560 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 | 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 | 15 | 4560 | 11620 |
Rocca San Casciano | FC | 15 | 1910 | 13530 |
San Godenzo | FI | 16 | 1167 | 14697 |
Casola Valsenio | RA | 18 | 2617 | 17314 |
Brisighella | RA | 19 | 7639 | 24953 |
Dovadola | FC | 20 | 1653 | 26606 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-10-08 10:50:37 |
44.0677 | 11.6563 | 6 | 2023-10-08 11:11:33 |
Sala Sismica INGV-Roma | 121886601 |
Field | Value |
---|---|
Time (UTC) | 2023-10-08 10:50:37 ± 0.11 |
Latitude | 44.0677 ± 0.0036 |
Longitude | 11.6563 ± 0.0038 |
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 | 121886601 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 397 |
Semi-minor axis of confidence ellipse (meter) | 130 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 159 |
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) | 91 |
Number of associated phases, regardless of their use for origin computation | 19 |
Number of defining phases | 19 |
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) | 0.03777 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34714 |
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 | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 121886601 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-08 11:11:33 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BOSL.HHZ. | 2023-10-08T10:50:47.00 | 0.6 | undecidable | manual | S | 236 | 27.1506 | 102 | 0.17 | 46 |
IV.VISG.HHZ. | 2023-10-08T10:50:45.28 | 0.6 | undecidable | manual | S | 307 | 22.2555 | 105 | 0.11 | 47 |
IV.SFI.EHZ. | 2023-10-08T10:50:45.80 | 0.6 | undecidable | manual | S | 140 | 23.6541 | 104 | 0.15 | 47 |
IV.SEI.HHZ. | 2023-10-08T10:50:45.70 | 0.6 | undecidable | manual | S | 267 | 23.754 | 104 | 0 | 48 |
IV.MOCL.EHZ. | 2023-10-08T10:50:44.77 | 1.0 | positive | manual | P | 260 | 38.5281 | 99 | -0.24 | 22 |
IV.VMGN.HHZ. | 2023-10-08T10:50:43.66 | 0.6 | undecidable | manual | S | 218 | 15.9729 | 111 | 0.55 | 43 |
IT.MOG.HNZ. | 2023-10-08T10:50:43.02 | 0.6 | undecidable | manual | S | 38 | 14.3745 | 113 | 0.42 | 45 |
IV.BOSL.HHZ. | 2023-10-08T10:50:42.48 | 0.1 | undecidable | manual | P | 236 | 27.1506 | 102 | -0.28 | 91 |
IV.RUFI.EHZ. | 2023-10-08T10:50:42.75 | 0.3 | positive | manual | P | 205 | 28.0497 | 102 | -0.19 | 69 |
IV.SFI.EHZ. | 2023-10-08T10:50:41.96 | 0.1 | positive | manual | P | 140 | 23.6541 | 104 | -0.11 | 95 |
IV.RINC.EHZ. | 2023-10-08T10:50:41.58 | 0.6 | positive | manual | P | 191 | 20.4684 | 106 | 0.11 | 48 |
IV.SEI.HHZ. | 2023-10-08T10:50:41.99 | 0.6 | positive | manual | P | 267 | 23.754 | 104 | -0.12 | 47 |
IV.VISG.HHZ. | 2023-10-08T10:50:41.69 | 0.6 | positive | manual | P | 307 | 22.2555 | 105 | -0.11 | 47 |
IT.MOG.HNZ. | 2023-10-08T10:50:40.40 | 0.1 | undecidable | manual | P | 38 | 14.3745 | 113 | 0.08 | 97 |
IV.VMGN.HHZ. | 2023-10-08T10:50:40.90 | 0.6 | positive | manual | P | 218 | 15.9729 | 111 | 0.29 | 46 |
IV.LMD.HHZ. | 2023-10-08T10:50:39.41 | 0.6 | undecidable | manual | S | 75 | 4.1958 | 145 | -0.32 | 47 |
IT.MRR.HGZ. | 2023-10-08T10:50:39.68 | 0.6 | undecidable | manual | S | 265 | 4.2957 | 145 | -0.05 | 49 |
IV.LMD.HHZ. | 2023-10-08T10:50:38.42 | 1.0 | undecidable | manual | P | 75 | 4.1958 | 145 | -0.23 | 24 |
IT.MRR.HGZ. | 2023-10-08T10:50:38.66 | 0.1 | undecidable | manual | P | 265 | 4.2957 | 145 | 0 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHN. | ML:0.6 | 0.000047350000000000006 | 1.36 | AML | other | m | 2023-10-08T10:50:43.05 |
IV.VMGN.HHE. | ML:0.7 | 0.000054199999999999996 | 0.44 | AML | other | m | 2023-10-08T10:50:43.71 |
IV.VISG.HHE. | ML:0.9 | 0.000052900000000000005 | 0.78 | AML | other | m | 2023-10-08T10:50:45.47 |
IV.VISG.HHN. | ML:0.8 | 0.000052449999999999994 | 0.88 | AML | other | m | 2023-10-08T10:50:45.63 |
IV.SFI.EHN. | ML:0.8 | 0.00003995 | 1.32 | AML | other | m | 2023-10-08T10:50:45.89 |
IV.SFI.EHE. | ML:0.8 | 0.0000468 | 0.34 | AML | other | m | 2023-10-08T10:50:46.64 |
IV.SEI.HHN. | ML:1.3 | 0.000147 | 1.1 | AML | other | m | 2023-10-08T10:50:46.68 |
IV.SEI.HHE. | ML:1.1 | 0.0000922 | 0.98 | AML | other | m | 2023-10-08T10:50:47.50 |