A magnitude ML 0.4 earthquake occured in region: 4 km W Tredozio (FC), on
and geographic coordinates (lat, lon) 44.0760, 11.6970 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 |
---|---|---|---|---|
Tredozio | FC | 4 | 1212 | 1212 |
Marradi | FI | 7 | 3139 | 4351 |
Portico e San Benedetto | FC | 9 | 756 | 5107 |
Rocca San Casciano | FC | 12 | 1910 | 7017 |
Modigliana | FC | 12 | 4560 | 11577 |
Palazzuolo sul Senio | FI | 13 | 1154 | 12731 |
Premilcuore | FC | 13 | 799 | 13530 |
Dovadola | FC | 16 | 1653 | 15183 |
Brisighella | RA | 17 | 7639 | 22822 |
Casola Valsenio | RA | 18 | 2617 | 25439 |
San Godenzo | FI | 18 | 1167 | 26606 |
Galeata | FC | 19 | 2516 | 29122 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.4 | 2023-09-20 12:13:13 |
44.076 | 11.697 | 6 | 2023-09-20 12:32:55 |
Sala Sismica INGV-Roma | 121275991 |
Field | Value |
---|---|
Time (UTC) | 2023-09-20 12:13:13 ± 0.18 |
Latitude | 44.0760 ± 0.0054 |
Longitude | 11.6970 ± 0.0075 |
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 | 121275991 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 503 |
Semi-minor axis of confidence ellipse (meter) | 408 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 237 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 500.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 138 |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 16 |
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) | 0.37772 |
Number of stations at which the event was observed | 17 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 121275991 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-20 12:32:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MRVN.HHZ. | 2023-09-20T12:15:11.09 | 3.0 | undecidable | manual | Sn | -6.05 | 0 | |||
IV.ACER.HHZ. | 2023-09-20T12:14:32.01 | 3.0 | positive | manual | Pg | 7.57 | 0 | |||
OT.OT14.EHZ. | 2023-09-20T12:14:21.23 | 3.0 | negative | manual | Pg | 6.99 | 0 | |||
IV.TOLF.HHZ. | 2023-09-20T12:14:14.37 | 3.0 | undecidable | manual | Sg | -0.17 | 0 | |||
IV.GUMA.HHZ. | 2023-09-20T12:14:04.85 | 3.0 | undecidable | manual | S | -0.99 | 0 | |||
IT.LRNO.HNZ. | 2023-09-20T12:14:03.25 | 3.0 | undecidable | manual | Pn | -3.83 | 0 | |||
IV.PTCC.HHZ. | 2023-09-20T12:13:59.66 | 3.0 | undecidable | manual | Pg | 0.83 | 0 | |||
IV.SEI.HHZ. | 2023-09-20T12:13:23.09 | 0.6 | undecidable | manual | S | 265 | 27.0507 | 102 | -0.29 | 61 |
IV.MOCL.EHZ. | 2023-09-20T12:13:23.08 | 0.6 | undecidable | manual | P | 259 | 41.9247 | 98 | 0.83 | 50 |
IV.VISG.HHZ. | 2023-09-20T12:13:22.54 | 0.6 | undecidable | manual | S | 301 | 24.3534 | 104 | 0.07 | 64 |
IV.RINC.EHZ. | 2023-09-20T12:13:21.76 | 0.3 | undecidable | manual | S | 199 | 22.2555 | 105 | 0.02 | 97 |
IV.VMGN.HHZ. | 2023-09-20T12:13:20.73 | 0.3 | undecidable | manual | S | 224 | 18.7701 | 107 | 0.13 | 96 |
IV.BOSL.HHZ. | 2023-09-20T12:13:19.66 | 1.0 | undecidable | manual | P | 238 | 30.3474 | 101 | -0.3 | 30 |
IV.SEI.HHZ. | 2023-09-20T12:13:19.01 | 0.6 | negative | manual | P | 265 | 27.0507 | 102 | -0.31 | 61 |
IV.RUFI.EHZ. | 2023-09-20T12:13:19.60 | 0.6 | positive | manual | P | 210 | 30.3474 | 101 | -0.36 | 60 |
IV.RINC.EHZ. | 2023-09-20T12:13:18.34 | 0.3 | undecidable | manual | P | 199 | 22.2555 | 105 | -0.03 | 97 |
IV.VISG.HHZ. | 2023-09-20T12:13:18.72 | 0.6 | negative | manual | P | 301 | 24.3534 | 104 | -0.07 | 64 |
IV.SFI.HNZ. | 2023-09-20T12:13:18.44 | 0.6 | undecidable | manual | P | 148 | 22.4553 | 105 | 0.03 | 65 |
IT.MRR.HGZ. | 2023-09-20T12:13:17.11 | 0.3 | undecidable | manual | S | 260 | 7.5813 | 128 | 0.01 | 100 |
IV.VMGN.HHZ. | 2023-09-20T12:13:17.81 | 0.6 | positive | manual | P | 224 | 18.7701 | 107 | 0.1 | 64 |
IT.MRR.HGZ. | 2023-09-20T12:13:15.74 | 0.3 | undecidable | manual | P | 260 | 7.5813 | 128 | 0.05 | 99 |
IV.LMD.HHZ. | 2023-09-20T12:13:15.74 | 0.6 | undecidable | manual | S | 79 | 0.7992 | 172 | -0.08 | 66 |
IV.LMD.HHZ. | 2023-09-20T12:13:15.02 | 0.3 | undecidable | manual | P | 79 | 0.7992 | 172 | 0.07 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:0.5 | 0.0000262 | 0.24 | AML | other | m | 2023-09-20T12:13:20.80 |
IV.VMGN.HHN. | ML:0.4 | 0.0000206 | 1.32 | AML | other | m | 2023-09-20T12:13:22.31 |
IV.VISG.HHN. | ML:0.5 | 0.00001785 | 1.62 | AML | other | m | 2023-09-20T12:13:22.85 |
IV.VISG.HHE. | ML:0.4 | 0.0000153 | 0.96 | AML | other | m | 2023-09-20T12:13:23.52 |