A magnitude ML 1.1 earthquake occured in region: 3 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0840, 11.6470 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 | 3 | 3139 | 3139 |
Tredozio | FC | 8 | 1212 | 4351 |
Palazzuolo sul Senio | FI | 9 | 1154 | 5505 |
Portico e San Benedetto | FC | 13 | 756 | 6261 |
Modigliana | FC | 14 | 4560 | 10821 |
Casola Valsenio | RA | 16 | 2617 | 13438 |
Premilcuore | FC | 16 | 799 | 14237 |
Rocca San Casciano | FC | 16 | 1910 | 16147 |
San Godenzo | FI | 18 | 1167 | 17314 |
Brisighella | RA | 18 | 7639 | 24953 |
Castel del Rio | BO | 18 | 1246 | 26199 |
Dovadola | FC | 20 | 1653 | 27852 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2023-09-18 18:04:06 |
44.0842 | 11.6473 | 7 | 2023-09-18 18:14:34 |
Sala Sismica INGV-Roma | 121201641 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 18:04:06 ± 0.11 |
Latitude | 44.0842 ± 0.0027 |
Longitude | 11.6473 ± 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 | 121201641 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 340 |
Semi-minor axis of confidence ellipse (meter) | 89 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 146 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 340.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 101 |
Number of associated phases, regardless of their use for origin computation | 31 |
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) | 0.26530 |
Number of stations at which the event was observed | 22 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 121201641 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 18:14:34 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MILN.HNZ. | 2023-09-18T18:05:13.38 | 3.0 | undecidable | manual | Sg | 7.74 | 0 | |||
ST.GAGG.HHZ. | 2023-09-18T18:05:01.16 | 3.0 | undecidable | manual | Sg | 0.97 | 0 | |||
GU.GENL.EHN. | 2023-09-18T18:05:00.74 | 3.0 | undecidable | manual | Sn | -0.56 | 0 | |||
IV.MURB.HHZ. | 2023-09-18T18:04:44.59 | 3.0 | undecidable | manual | S | 1.7 | 0 | |||
IV.ARVD.HHZ. | 2023-09-18T18:04:42.54 | 3.0 | undecidable | manual | S | -0.9 | 0 | |||
IV.SGAL.EHE. | 2023-09-18T18:04:31.32 | 3.0 | positive | manual | P | -0.19 | 0 | |||
IV.SENI.HNE. | 2023-09-18T18:04:30.01 | 3.0 | positive | manual | P | 3.28 | 0 | |||
IV.CPGN.EHZ. | 2023-09-18T18:04:28.95 | 3.0 | undecidable | manual | S | 1.79 | 0 | |||
IV.TREG.EHN. | 2023-09-18T18:04:27.41 | 3.0 | positive | manual | P | 0.09 | 0 | |||
IV.FIR.HHN. | 2023-09-18T18:04:26.13 | 3.0 | undecidable | manual | S | 2.21 | 0 | |||
IV.CRE.HHZ. | 2023-09-18T18:04:16.70 | 3.0 | negative | manual | P | -0.22 | 0 | |||
IV.BOSL.HHZ. | 2023-09-18T18:04:16.40 | 0.3 | undecidable | manual | S | 232 | 27.6501 | 104 | 0.08 | 73 |
IV.SFI.EHZ. | 2023-09-18T18:04:15.68 | 0.3 | undecidable | manual | S | 141 | 25.4523 | 105 | 0.08 | 73 |
IV.SEI.HHZ. | 2023-09-18T18:04:15.02 | 1.0 | undecidable | manual | S | 262 | 23.2545 | 106 | 0.17 | 24 |
IV.VISG.HHZ. | 2023-09-18T18:04:14.06 | 0.3 | undecidable | manual | S | 304 | 20.5683 | 108 | 0.1 | 73 |
IV.RINC.EHZ. | 2023-09-18T18:04:14.80 | 0.3 | undecidable | manual | S | 188 | 22.1556 | 107 | 0.31 | 70 |
IV.VMGN.HHZ. | 2023-09-18T18:04:13.17 | 0.3 | undecidable | manual | S | 212 | 17.0718 | 112 | 0.36 | 70 |
IV.BOSL.HHZ. | 2023-09-18T18:04:12.07 | 1.0 | undecidable | manual | P | 232 | 27.6501 | 104 | -0.07 | 24 |
IV.RUFI.EHZ. | 2023-09-18T18:04:12.12 | 0.3 | undecidable | manual | P | 202 | 29.4483 | 103 | -0.37 | 68 |
IT.MOG.HNE. | 2023-09-18T18:04:12.06 | 0.3 | undecidable | manual | S | 45 | 13.4754 | 117 | 0.37 | 70 |
IV.SEI.HHZ. | 2023-09-18T18:04:11.14 | 0.6 | positive | manual | P | 262 | 23.2545 | 106 | -0.16 | 48 |
IV.FNVD.HHN. | 2023-09-18T18:04:11.21 | 3.0 | undecidable | manual | P | -0.48 | 0 | |||
IV.SFI.EHZ. | 2023-09-18T18:04:11.52 | 0.1 | positive | manual | P | 141 | 25.4523 | 105 | -0.21 | 95 |
IV.VMGN.HHZ. | 2023-09-18T18:04:10.27 | 0.1 | positive | manual | P | 212 | 17.0718 | 112 | 0.15 | 97 |
IV.VISG.HHZ. | 2023-09-18T18:04:10.70 | 0.1 | undecidable | manual | P | 304 | 20.5683 | 108 | -0.08 | 98 |
IV.RINC.EHZ. | 2023-09-18T18:04:10.96 | 0.3 | undecidable | manual | P | 188 | 22.1556 | 107 | -0.13 | 73 |
IV.LMD.HHE. | 2023-09-18T18:04:09.32 | 0.3 | undecidable | manual | S | 99 | 4.7952 | 145 | -0.03 | 76 |
IT.MRR.HGE. | 2023-09-18T18:04:09.01 | 0.3 | undecidable | manual | S | 238 | 4.1958 | 149 | -0.21 | 74 |
IT.MOG.HNE. | 2023-09-18T18:04:09.52 | 0.1 | undecidable | manual | P | 45 | 13.4754 | 117 | 0.05 | 100 |
IV.LMD.HHE. | 2023-09-18T18:04:07.99 | 0.1 | negative | manual | P | 99 | 4.7952 | 145 | -0.13 | 100 |
IT.MRR.HGE. | 2023-09-18T18:04:07.92 | 0.1 | undecidable | manual | P | 238 | 4.1958 | 149 | -0.12 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:1.3 | 0.0003265 | 0.54 | AML | other | m | 2023-09-18T18:04:09.39 |
IV.LMD.HHE. | ML:1.3 | 0.00033850000000000004 | 0.72 | AML | other | m | 2023-09-18T18:04:09.52 |
IV.VISG.HHE. | ML:0.8 | 0.00004295 | 0.24 | AML | other | m | 2023-09-18T18:04:14.23 |
IV.VISG.HHN. | ML:0.9 | 0.00005525 | 0.7 | AML | other | m | 2023-09-18T18:04:15.11 |
IV.SEI.HHN. | ML:1.4 | 0.00019250000000000002 | 0.3 | AML | other | m | 2023-09-18T18:04:15.34 |
IV.SEI.HHE. | ML:1.3 | 0.000131 | 0.32 | AML | other | m | 2023-09-18T18:04:16.24 |
IV.CRE.HHE. | ML:1.0 | 0.00002035 | 0.42 | AML | other | m | 2023-09-18T18:04:18.24 |
IV.CRE.HHN. | ML:1.3 | 0.00004485 | 0.22 | AML | other | m | 2023-09-18T18:04:25.43 |