A magnitude ML 1.0 earthquake occured in region: 5 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0490, 11.6680 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 | 5 | 3139 | 3139 |
Tredozio | FC | 7 | 1212 | 4351 |
Portico e San Benedetto | FC | 9 | 756 | 5107 |
Premilcuore | FC | 12 | 799 | 5906 |
Palazzuolo sul Senio | FI | 12 | 1154 | 7060 |
San Godenzo | FI | 14 | 1167 | 8227 |
Rocca San Casciano | FC | 14 | 1910 | 10137 |
Modigliana | FC | 16 | 4560 | 14697 |
Dovadola | FC | 19 | 1653 | 16350 |
Casola Valsenio | RA | 20 | 2617 | 18967 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2023-09-18 19:24:43 |
44.049 | 11.668 | 6 | 2023-09-18 19:30:19 |
Sala Sismica INGV-Roma | 121204121 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 19:24:43 ± 0.14 |
Latitude | 44.0490 ± 0.0036 |
Longitude | 11.6680 ± 0.0050 |
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 | 121204121 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 439 |
Semi-minor axis of confidence ellipse (meter) | 206 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 136 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 440.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 93 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.24 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24192 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 121204121 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 19:30:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FNVD.HHN. | 2023-09-18T19:24:52.83 | 3.0 | undecidable | manual | P | 0.3 | 0 | |||
IV.SEI.HHZ. | 2023-09-18T19:24:52.11 | 0.3 | undecidable | manual | S | 271 | 24.6531 | 103 | -0.01 | 73 |
IV.BOSL.HHZ. | 2023-09-18T19:24:52.84 | 0.3 | undecidable | manual | S | 241 | 26.8509 | 102 | -0.01 | 72 |
IV.RUFI.EHZ. | 2023-09-18T19:24:52.69 | 0.3 | undecidable | manual | S | 208 | 26.6511 | 102 | -0.09 | 71 |
IV.VISG.HHZ. | 2023-09-18T19:24:51.81 | 0.3 | undecidable | manual | S | 310 | 24.2535 | 103 | -0.16 | 71 |
IV.SFI.EHZ. | 2023-09-18T19:24:51.12 | 0.3 | undecidable | manual | S | 138 | 21.4674 | 105 | 0.08 | 72 |
IV.VMGN.HHZ. | 2023-09-18T19:24:49.22 | 0.3 | undecidable | manual | S | 226 | 15.0738 | 111 | 0.3 | 70 |
IV.VISG.HHZ. | 2023-09-18T19:24:49.12 | 0.3 | undecidable | manual | P | 310 | 24.2535 | 103 | 0.8 | 58 |
IT.MOG.HNZ. | 2023-09-18T19:24:49.35 | 0.3 | undecidable | manual | S | 30 | 15.5733 | 110 | 0.26 | 70 |
IV.BOSL.HHZ. | 2023-09-18T19:24:48.53 | 0.6 | undecidable | manual | P | 241 | 26.8509 | 102 | -0.3 | 46 |
IV.RUFI.EHZ. | 2023-09-18T19:24:48.43 | 0.6 | positive | manual | P | 208 | 26.6511 | 102 | -0.36 | 45 |
IV.SFI.EHZ. | 2023-09-18T19:24:47.60 | 0.6 | positive | manual | P | 138 | 21.4674 | 105 | -0.18 | 47 |
IV.SEI.HHZ. | 2023-09-18T19:24:47.99 | 0.3 | positive | manual | P | 271 | 24.6531 | 103 | -0.42 | 67 |
IV.RINC.EHZ. | 2023-09-18T19:24:47.59 | 0.3 | undecidable | manual | P | 195 | 18.6702 | 107 | 0.35 | 69 |
IT.MRR.HGZ. | 2023-09-18T19:24:46.08 | 0.3 | undecidable | manual | S | 288 | 5.3946 | 136 | 0.02 | 75 |
IV.VMGN.HHZ. | 2023-09-18T19:24:46.65 | 0.3 | positive | manual | P | 226 | 15.0738 | 111 | 0.09 | 73 |
IT.MOG.HNZ. | 2023-09-18T19:24:46.48 | 0.3 | undecidable | manual | P | 30 | 15.5733 | 110 | -0.18 | 71 |
IV.LMD.HHZ. | 2023-09-18T19:24:45.79 | 0.1 | undecidable | manual | S | 45 | 4.4955 | 142 | -0.05 | 100 |
IV.LMD.HHZ. | 2023-09-18T19:24:44.62 | 0.1 | undecidable | manual | P | 45 | 4.4955 | 142 | -0.16 | 97 |
IT.MRR.HGZ. | 2023-09-18T19:24:44.88 | 0.1 | undecidable | manual | P | 288 | 5.3946 | 136 | -0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHN. | ML:1.0 | 0.000117 | 0.18 | AML | other | m | 2023-09-18T19:24:49.55 |
IV.VMGN.HHE. | ML:1.0 | 0.00010095 | 0.32 | AML | other | m | 2023-09-18T19:24:49.69 |
IV.LMD.HHE. | ML:0.0 | 0.000467519 | 0.1664 | AML | other | m | 2023-09-18T19:24:45.81 |
IV.LMD.HHN. | ML:0.0 | 0.00056056045 | 0.1024 | AML | other | m | 2023-09-18T19:24:45.86 |