A magnitude ML 0.5 earthquake occured in region: 3 km NE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0960, 11.6350 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 | 3 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 7 | 1154 | 4293 |
Tredozio | FC | 9 | 1212 | 5505 |
Portico e San Benedetto | FC | 14 | 756 | 6261 |
Modigliana | FC | 14 | 4560 | 10821 |
Casola Valsenio | RA | 14 | 2617 | 13438 |
Castel del Rio | BO | 17 | 1246 | 14684 |
Rocca San Casciano | FC | 17 | 1910 | 16594 |
Premilcuore | FC | 17 | 799 | 17393 |
Brisighella | RA | 18 | 7639 | 25032 |
San Godenzo | FI | 19 | 1167 | 26199 |
Fontanelice | BO | 19 | 1943 | 28142 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-09-22 15:09:08 |
44.0963 | 11.6353 | 7 | 2023-09-22 15:21:27 |
Sala Sismica INGV-Roma | 121364581 |
Field | Value |
---|---|
Time (UTC) | 2023-09-22 15:09:08 ± 0.21 |
Latitude | 44.0963 ± 0.0090 |
Longitude | 11.6353 ± 0.0075 |
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 | 121364581 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 771 |
Semi-minor axis of confidence ellipse (meter) | 667 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 163 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 770.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 212 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27339 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 121364581 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-22 15:21:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VARE.HHZ. | 2023-09-22T15:10:30.21 | 3.0 | undecidable | manual | Sg | 2.86 | 0 | |||
IV.TDS.HHZ. | 2023-09-22T15:10:21.56 | 3.0 | undecidable | manual | Pn | -2.31 | 0 | |||
RF.GEPF.HHZ. | 2023-09-22T15:10:05.19 | 3.0 | undecidable | manual | Sg | -0.91 | 0 | |||
IV.SGTA.HHZ. | 2023-09-22T15:09:59.50 | 3.0 | undecidable | manual | Pn | -1.86 | 0 | |||
IV.PTRJ.HHZ. | 2023-09-22T15:09:57.18 | 3.0 | undecidable | manual | Pn | 3.08 | 0 | |||
IV.NRCA.HHZ. | 2023-09-22T15:09:51.47 | 3.0 | undecidable | manual | Sn | -0.5 | 0 | |||
IV.CAFI.HHZ. | 2023-09-22T15:09:37.80 | 3.0 | undecidable | manual | Sg | 1.57 | 0 | |||
IV.MURB.HHZ. | 2023-09-22T15:09:20.97 | 3.0 | undecidable | manual | P | -0.7 | 0 | |||
IV.SEI.HHZ. | 2023-09-22T15:09:16.94 | 0.6 | undecidable | manual | S | 258 | 22.5552 | 106 | 0.16 | 47 |
IV.VMGN.HHZ. | 2023-09-22T15:09:15.43 | 0.6 | undecidable | manual | S | 208 | 17.7711 | 110 | 0.23 | 47 |
IV.RUFI.EHE. | 2023-09-22T15:09:14.57 | 0.1 | undecidable | manual | P | 199 | 30.3474 | 102 | -0.29 | 90 |
IV.SEI.HHZ. | 2023-09-22T15:09:13.32 | 0.3 | positive | manual | P | 258 | 22.5552 | 106 | -0.03 | 73 |
IV.RINC.EHN. | 2023-09-22T15:09:13.63 | 0.6 | undecidable | manual | P | 186 | 23.3544 | 106 | 0.12 | 47 |
IV.VMGN.HHZ. | 2023-09-22T15:09:12.63 | 0.6 | negative | manual | P | 208 | 17.7711 | 110 | 0.2 | 47 |
IV.LMD.HHZ. | 2023-09-22T15:09:11.84 | 0.6 | undecidable | manual | S | 110 | 6.0939 | 137 | 0.1 | 49 |
IT.MRR.HGE. | 2023-09-22T15:09:11.14 | 0.6 | undecidable | manual | S | 216 | 4.3956 | 146 | -0.22 | 48 |
IT.MRR.HGE. | 2023-09-22T15:09:10.19 | 0.1 | undecidable | manual | P | 216 | 4.3956 | 146 | -0.02 | 100 |
IV.LMD.HHZ. | 2023-09-22T15:09:10.49 | 0.6 | undecidable | manual | P | 110 | 6.0939 | 137 | 0.06 | 49 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:0.4 | 0.000023787278500000003 | 1.4592 | AML | other | m | 2023-09-22T15:09:16.36 |
IV.VMGN.HHN. | ML:0.2 | 0.000016237864999999997 | 1.024 | AML | other | m | 2023-09-22T15:09:16.10 |
IV.SEI.HHE. | ML:0.6 | 0.000031053415 | 0.4608 | AML | other | m | 2023-09-22T15:09:25.50 |
IV.SEI.HHN. | ML:0.9 | 0.00004813506 | 0.256 | AML | other | m | 2023-09-22T15:09:17.65 |