A magnitude ML 1.4 earthquake occured in region: 2 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0760, 11.6340 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 | 2 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 8 | 1154 | 4293 |
Tredozio | FC | 9 | 1212 | 5505 |
Portico e San Benedetto | FC | 13 | 756 | 6261 |
Modigliana | FC | 16 | 4560 | 10821 |
Premilcuore | FC | 16 | 799 | 11620 |
Casola Valsenio | RA | 17 | 2617 | 14237 |
San Godenzo | FI | 17 | 1167 | 15404 |
Rocca San Casciano | FC | 17 | 1910 | 17314 |
Castel del Rio | BO | 18 | 1246 | 18560 |
Brisighella | RA | 20 | 7639 | 26199 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.4 | 2023-09-18 19:24:53 |
44.0765 | 11.6343 | 7 | 2023-09-18 19:31:34 |
Sala Sismica INGV-Roma | 121204131 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 19:24:53 ± 0.11 |
Latitude | 44.0765 ± 0.0036 |
Longitude | 11.6343 ± 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 | 121204131 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 379 |
Semi-minor axis of confidence ellipse (meter) | 111 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 167 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 380.0 |
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 | 20 |
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) | 0.33365 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 121204131 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 19:31:34 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CRE.HHZ. | 2023-09-18T19:25:03.59 | 3.0 | positive | manual | P | 0.11 | 0 | |||
IV.SFI.EHZ. | 2023-09-18T19:25:02.22 | 0.3 | undecidable | manual | S | 138 | 25.5522 | 105 | -0.04 | 72 |
IV.BOSL.HHZ. | 2023-09-18T19:25:02.72 | 0.6 | undecidable | manual | S | 232 | 26.2515 | 105 | 0.2 | 46 |
IV.SEI.HHZ. | 2023-09-18T19:25:01.29 | 0.3 | undecidable | manual | S | 264 | 22.1556 | 107 | 0.16 | 71 |
IV.RINC.EHZ. | 2023-09-18T19:25:01.04 | 1.0 | undecidable | manual | S | 186 | 21.1677 | 108 | 0.22 | 23 |
IV.VISG.HHZ. | 2023-09-18T19:25:00.37 | 0.6 | undecidable | manual | S | 308 | 20.2686 | 109 | -0.14 | 48 |
IV.VMGN.HHZ. | 2023-09-18T19:24:59.52 | 0.6 | undecidable | manual | S | 211 | 15.7731 | 114 | 0.46 | 45 |
IT.MOG.HNE. | 2023-09-18T19:24:59.15 | 0.3 | undecidable | manual | S | 45 | 14.874 | 115 | 0.39 | 68 |
IV.MOCL.EHZ. | 2023-09-18T19:24:59.87 | 1.0 | undecidable | manual | P | 258 | 37.0296 | 101 | -0.76 | 19 |
IV.RUFI.EHZ. | 2023-09-18T19:24:58.70 | 0.3 | positive | manual | P | 201 | 28.2495 | 104 | -0.21 | 69 |
IV.SFI.EHZ. | 2023-09-18T19:24:58.18 | 0.1 | positive | manual | P | 138 | 25.5522 | 105 | -0.2 | 93 |
IV.BOSL.HHZ. | 2023-09-18T19:24:58.62 | 0.6 | negative | manual | P | 232 | 26.2515 | 105 | 0.09 | 48 |
IV.SEI.HHZ. | 2023-09-18T19:24:57.54 | 0.1 | undecidable | manual | P | 264 | 22.1556 | 107 | -0.19 | 94 |
IV.RINC.EHZ. | 2023-09-18T19:24:57.70 | 0.6 | negative | manual | P | 186 | 21.1677 | 108 | 0.15 | 47 |
IV.VISG.HHZ. | 2023-09-18T19:24:57.31 | 0.1 | undecidable | manual | P | 308 | 20.2686 | 109 | -0.06 | 97 |
IV.VMGN.HHZ. | 2023-09-18T19:24:56.78 | 0.6 | positive | manual | P | 211 | 15.7731 | 114 | 0.25 | 47 |
IT.MOG.HNE. | 2023-09-18T19:24:56.52 | 0.1 | undecidable | manual | P | 45 | 14.874 | 115 | 0.16 | 96 |
IV.LMD.HHZ. | 2023-09-18T19:24:56.04 | 0.3 | undecidable | manual | S | 89 | 5.7942 | 140 | -0.18 | 73 |
IT.MRR.HGE. | 2023-09-18T19:24:55.53 | 0.6 | undecidable | manual | S | 241 | 2.7972 | 158 | -0.15 | 49 |
IT.MRR.HGE. | 2023-09-18T19:24:54.54 | 0.1 | undecidable | manual | P | 241 | 2.7972 | 158 | -0.04 | 100 |
IV.LMD.HHZ. | 2023-09-18T19:24:54.81 | 0.1 | undecidable | manual | P | 89 | 5.7942 | 140 | -0.08 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:2.1 | 0.00227 | 0.08 | AML | other | m | 2023-09-18T19:24:56.12 |
IV.LMD.HHE. | ML:1.8 | 0.0011835 | 0.64 | AML | other | m | 2023-09-18T19:24:56.13 |
IV.VISG.HHN. | ML:1.4 | 0.00017749999999999998 | 1.84 | AML | other | m | 2023-09-18T19:25:00.98 |
IV.RINC.EHE. | ML:1.4 | 0.000166 | 0.14 | AML | other | m | 2023-09-18T19:25:01.20 |
IV.SEI.HHE. | ML:1.6 | 0.0003105 | 0.22 | AML | other | m | 2023-09-18T19:25:01.70 |
IV.SEI.HHN. | ML:2.1 | 0.0008855 | 0.2 | AML | other | m | 2023-09-18T19:25:01.89 |
IV.VISG.HHE. | ML:1.3 | 0.000143 | 1.32 | AML | other | m | 2023-09-18T19:25:01.23 |
IV.RINC.EHN. | ML:1.3 | 0.0001435 | 0.16 | AML | other | m | 2023-09-18T19:25:02.34 |
IV.SFI.EHN. | ML:1.3 | 0.00011415 | 0.88 | AML | other | m | 2023-09-18T19:25:02.50 |
IV.BOSL.HHE. | ML:0.8 | 0.000041349999999999995 | 1.14 | AML | other | m | 2023-09-18T19:25:02.37 |
IV.SFI.EHE. | ML:1.3 | 0.0001235 | 1.2 | AML | other | m | 2023-09-18T19:25:03.13 |
IV.BOSL.HHN. | ML:0.9 | 0.0000512 | 1.18 | AML | other | m | 2023-09-18T19:25:03.96 |
IV.MOCL.EHN. | ML:1.8 | 0.00023349999999999998 | 0.9 | AML | other | m | 2023-09-18T19:25:06.71 |
IV.MOCL.EHE. | ML:1.7 | 0.00017999999999999998 | 0.16 | AML | other | m | 2023-09-18T19:25:06.57 |
IV.CRE.HHN. | ML:1.5 | 0.0000727 | 0.26 | AML | other | m | 2023-09-18T19:25:12.15 |
IV.CRE.HHE. | ML:1.1 | 0.000028749999999999997 | 0.42 | AML | other | m | 2023-09-18T19:25:13.51 |