A magnitude ML 1.3 earthquake occured in region: 3 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0810, 11.6570 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 | 9 | 1154 | 5505 |
Portico e San Benedetto | FC | 12 | 756 | 6261 |
Modigliana | FC | 14 | 4560 | 10821 |
Premilcuore | FC | 15 | 799 | 11620 |
Rocca San Casciano | FC | 15 | 1910 | 13530 |
Casola Valsenio | RA | 16 | 2617 | 16147 |
San Godenzo | FI | 17 | 1167 | 17314 |
Brisighella | RA | 18 | 7639 | 24953 |
Dovadola | FC | 19 | 1653 | 26606 |
Castel del Rio | BO | 19 | 1246 | 27852 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2023-09-18 20:29:53 |
44.081 | 11.6568 | 6 | 2023-09-18 20:34:18 |
Sala Sismica INGV-Roma | 121207441 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 20:29:53 ± 0.1 |
Latitude | 44.0810 ± 0.0036 |
Longitude | 11.6568 ± 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 | 121207441 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 349 |
Semi-minor axis of confidence ellipse (meter) | 107 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 178 |
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) | 97 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35074 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 121207441 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 20:34:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ATFO.HHZ. | 2023-09-18T20:30:12.84 | 3.0 | undecidable | manual | P | 0.66 | 0 | |||
IV.BOSL.HHZ. | 2023-09-18T20:30:03.46 | 0.6 | undecidable | manual | S | 234 | 28.0497 | 102 | 0.25 | 46 |
IV.RUFI.EHZ. | 2023-09-18T20:30:03.56 | 0.3 | undecidable | manual | S | 204 | 29.4483 | 102 | -0.12 | 71 |
IV.CRE.HHZ. | 2023-09-18T20:30:03.47 | 3.0 | negative | manual | P | -0.14 | 0 | |||
IV.SFI.EHZ. | 2023-09-18T20:30:02.37 | 0.3 | undecidable | manual | S | 142 | 24.753 | 104 | 0.26 | 70 |
IV.SEI.HHZ. | 2023-09-18T20:30:02.06 | 0.3 | undecidable | manual | S | 263 | 23.9538 | 104 | 0.22 | 70 |
IV.VISG.HHZ. | 2023-09-18T20:30:01.12 | 0.3 | undecidable | manual | S | 304 | 21.3675 | 106 | 0.14 | 72 |
IV.RINC.EHZ. | 2023-09-18T20:30:01.52 | 0.6 | undecidable | manual | S | 190 | 21.9669 | 106 | 0.36 | 46 |
IV.MOCL.EHZ. | 2023-09-18T20:30:00.58 | 0.6 | negative | manual | P | 258 | 38.9277 | 99 | -0.57 | 42 |
IV.RUFI.EHZ. | 2023-09-18T20:29:59.07 | 0.1 | undecidable | manual | P | 204 | 29.4483 | 102 | -0.21 | 93 |
IV.BOSL.HHZ. | 2023-09-18T20:29:59.04 | 0.6 | undecidable | manual | P | 234 | 28.0497 | 102 | 0.04 | 48 |
IV.SEI.HHZ. | 2023-09-18T20:29:58.12 | 0.1 | negative | manual | P | 263 | 23.9538 | 104 | -0.09 | 96 |
IV.SFI.EHZ. | 2023-09-18T20:29:58.28 | 0.1 | negative | manual | P | 142 | 24.753 | 104 | -0.08 | 96 |
IT.MOG.HNZ. | 2023-09-18T20:29:58.64 | 0.6 | undecidable | manual | S | 41 | 13.1757 | 115 | 0.33 | 47 |
IV.RINC.EHZ. | 2023-09-18T20:29:57.97 | 0.6 | undecidable | manual | P | 190 | 21.9669 | 106 | 0.15 | 48 |
IV.VMGN.HHZ. | 2023-09-18T20:29:57.19 | 3.0 | positive | manual | P | 0.24 | 0 | |||
IV.VISG.HHZ. | 2023-09-18T20:29:57.61 | 0.1 | undecidable | manual | P | 304 | 21.3675 | 106 | -0.1 | 96 |
IT.MOG.HNZ. | 2023-09-18T20:29:56.28 | 0.1 | undecidable | manual | P | 41 | 13.1757 | 115 | 0.1 | 98 |
IT.MRR.HGZ. | 2023-09-18T20:29:55.92 | 0.3 | undecidable | manual | S | 246 | 4.6953 | 143 | 0 | 76 |
IV.LMD.HHE. | 2023-09-18T20:29:55.51 | 0.6 | undecidable | manual | S | 96 | 3.996 | 147 | -0.29 | 48 |
IT.MRR.HGZ. | 2023-09-18T20:29:54.86 | 0.1 | undecidable | manual | P | 246 | 4.6953 | 143 | 0.06 | 100 |
IV.LMD.HHE. | 2023-09-18T20:29:54.55 | 0.1 | undecidable | manual | P | 96 | 3.996 | 147 | -0.18 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:1.1 | 0.00010765 | 0.22 | AML | other | m | 2023-09-18T20:30:00.74 |
IV.VISG.HHN. | ML:1.2 | 0.000124 | 0.46 | AML | other | m | 2023-09-18T20:30:01.65 |
IV.VISG.HHE. | ML:1.1 | 0.0000917 | 1.22 | AML | other | m | 2023-09-18T20:30:01.36 |
IV.SFI.EHE. | ML:1.3 | 0.00011999999999999999 | 0.74 | AML | other | m | 2023-09-18T20:30:02.42 |
IV.SEI.HHE. | ML:1.8 | 0.00036850000000000007 | 0.24 | AML | other | m | 2023-09-18T20:30:02.55 |
IV.SEI.HHN. | ML:2.1 | 0.000885 | 0.28 | AML | other | m | 2023-09-18T20:30:02.55 |
IV.VMGN.HHN. | ML:1.2 | 0.000134 | 1.28 | AML | other | m | 2023-09-18T20:30:02.65 |
IV.SFI.EHN. | ML:1.3 | 0.000123 | 1.06 | AML | other | m | 2023-09-18T20:30:03.00 |
IV.BOSL.HHE. | ML:0.9 | 0.0000383 | 0.18 | AML | other | m | 2023-09-18T20:30:04.11 |
IV.BOSL.HHN. | ML:1.0 | 0.000049000000000000005 | 1.24 | AML | other | m | 2023-09-18T20:30:04.13 |
IV.MOCL.EHN. | ML:1.6 | 0.00016099999999999998 | 0.22 | AML | other | m | 2023-09-18T20:30:07.20 |
IV.MOCL.EHE. | ML:1.3 | 0.00007885 | 0.48 | AML | other | m | 2023-09-18T20:30:07.20 |
IV.CRE.HHN. | ML:1.8 | 0.0001395 | 0.2 | AML | other | m | 2023-09-18T20:30:12.16 |
IV.CRE.HHE. | ML:1.4 | 0.0000574 | 0.26 | AML | other | m | 2023-09-18T20:30:12.40 |