A magnitude ML 0.5 earthquake occured in region: 6 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0470, 11.6800 at 8 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 | 6 | 3139 | 3139 |
Tredozio | FC | 6 | 1212 | 4351 |
Portico e San Benedetto | FC | 8 | 756 | 5107 |
Premilcuore | FC | 11 | 799 | 5906 |
Palazzuolo sul Senio | FI | 13 | 1154 | 7060 |
Rocca San Casciano | FC | 13 | 1910 | 8970 |
San Godenzo | FI | 14 | 1167 | 10137 |
Modigliana | FC | 15 | 4560 | 14697 |
Dovadola | FC | 19 | 1653 | 16350 |
Galeata | FC | 19 | 2516 | 18866 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-09-18 17:39:34 |
44.0467 | 11.6802 | 8 | 2023-09-18 17:45:30 |
Sala Sismica INGV-Roma | 121200621 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 17:39:34 ± 0.11 |
Latitude | 44.0467 ± 0.0027 |
Longitude | 11.6802 ± 0.0038 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121200621 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 377 |
Semi-minor axis of confidence ellipse (meter) | 162 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 126 |
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) | 108 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.15 |
Epicentral distance of station closest to the epicenter (degree) | 0.03687 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24821 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.0 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 121200621 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 17:45:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BOSL.HHZ. | 2023-09-18T17:39:43.96 | 0.6 | undecidable | manual | S | 242 | 27.5502 | 106 | -0.09 | 48 |
IV.SFI.EHZ. | 2023-09-18T17:39:41.72 | 0.6 | undecidable | manual | S | 140 | 20.6682 | 111 | -0.04 | 49 |
IV.RINC.EHZ. | 2023-09-18T17:39:41.19 | 0.6 | undecidable | manual | S | 198 | 18.6702 | 113 | 0.05 | 49 |
IV.VMGN.HHZ. | 2023-09-18T17:39:40.49 | 0.6 | undecidable | manual | S | 229 | 15.5733 | 117 | 0.33 | 47 |
IT.MOG.HNE. | 2023-09-18T17:39:40.31 | 0.3 | undecidable | manual | S | 27 | 15.3735 | 117 | 0.22 | 72 |
IV.BOSL.HHZ. | 2023-09-18T17:39:39.71 | 0.1 | undecidable | manual | P | 242 | 27.5502 | 106 | -0.13 | 96 |
IV.RUFI.EHZ. | 2023-09-18T17:39:39.57 | 0.3 | positive | manual | P | 211 | 26.8509 | 107 | -0.13 | 72 |
IV.SEI.HHZ. | 2023-09-18T17:39:39.27 | 0.1 | undecidable | manual | P | 272 | 25.6521 | 107 | -0.2 | 95 |
IV.RINC.EHZ. | 2023-09-18T17:39:38.32 | 0.6 | positive | manual | P | 198 | 18.6702 | 113 | 0.16 | 48 |
IV.SFI.EHZ. | 2023-09-18T17:39:38.47 | 0.1 | undecidable | manual | P | 140 | 20.6682 | 111 | -0.05 | 98 |
IV.VMGN.HHZ. | 2023-09-18T17:39:37.87 | 0.3 | positive | manual | P | 229 | 15.5733 | 117 | 0.28 | 71 |
IT.MOG.HNE. | 2023-09-18T17:39:37.62 | 0.1 | undecidable | manual | P | 27 | 15.3735 | 117 | 0.06 | 99 |
IT.MRR.HGE. | 2023-09-18T17:39:37.60 | 0.6 | undecidable | manual | S | 288 | 6.3936 | 141 | -0.04 | 51 |
IV.LMD.HHZ. | 2023-09-18T17:39:36.91 | 0.6 | undecidable | manual | S | 32 | 4.0959 | 153 | -0.28 | 48 |
IT.MRR.HGE. | 2023-09-18T17:39:36.26 | 0.1 | undecidable | manual | P | 288 | 6.3936 | 141 | 0.12 | 99 |
IV.LMD.HHZ. | 2023-09-18T17:39:35.77 | 0.1 | undecidable | manual | P | 32 | 4.0959 | 153 | -0.11 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHN. | ML:0.6 | 0.00003275 | 1.1 | AML | other | m | 2023-09-18T17:39:41.37 |
IV.VMGN.HHE. | ML:0.5 | 0.000031849999999999995 | 0.92 | AML | other | m | 2023-09-18T17:39:41.47 |
IV.SFI.EHE. | ML:0.5 | 0.000022735 | 0.48 | AML | other | m | 2023-09-18T17:39:43.34 |
IV.SFI.EHN. | ML:0.5 | 0.0000258 | 1.2 | AML | other | m | 2023-09-18T17:39:43.85 |