A magnitude ML 0.5 earthquake occured in region: 4 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0720, 11.6660 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 | 4 | 3139 | 3139 |
Tredozio | FC | 6 | 1212 | 4351 |
Palazzuolo sul Senio | FI | 10 | 1154 | 5505 |
Portico e San Benedetto | FC | 11 | 756 | 6261 |
Premilcuore | FC | 14 | 799 | 7060 |
Modigliana | FC | 14 | 4560 | 11620 |
Rocca San Casciano | FC | 14 | 1910 | 13530 |
San Godenzo | FI | 17 | 1167 | 14697 |
Casola Valsenio | RA | 17 | 2617 | 17314 |
Brisighella | RA | 19 | 7639 | 24953 |
Dovadola | FC | 19 | 1653 | 26606 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-09-21 23:26:22 |
44.0723 | 11.6657 | 7 | 2023-09-21 23:31:50 |
Sala Sismica INGV-Roma | 121330751 |
Field | Value |
---|---|
Time (UTC) | 2023-09-21 23:26:22 ± 0.14 |
Latitude | 44.0723 ± 0.0036 |
Longitude | 11.6657 ± 0.0050 |
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 | 121330751 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 377 |
Semi-minor axis of confidence ellipse (meter) | 251 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 211 |
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) | 135 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.03058 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25990 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 121330751 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-21 23:31:50 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHZ. | 2023-09-21T23:26:32.55 | 0.6 | undecidable | manual | S | 206 | 28.8489 | 103 | -0.2 | 48 |
IV.SFI.EHZ. | 2023-09-21T23:26:31.23 | 0.6 | undecidable | manual | S | 142 | 23.5542 | 106 | 0.25 | 48 |
IV.SEI.HHZ. | 2023-09-21T23:26:31.14 | 0.6 | undecidable | manual | S | 265 | 24.5532 | 106 | -0.17 | 49 |
IV.RINC.EHZ. | 2023-09-21T23:26:30.28 | 0.6 | undecidable | manual | S | 193 | 21.1677 | 108 | 0.11 | 50 |
IV.VISG.HHZ. | 2023-09-21T23:26:30.88 | 0.6 | undecidable | manual | S | 305 | 22.4553 | 107 | 0.26 | 48 |
IV.RUFI.EHZ. | 2023-09-21T23:26:28.13 | 0.6 | positive | manual | P | 206 | 28.8489 | 103 | -0.27 | 48 |
IV.VMGN.HHZ. | 2023-09-21T23:26:28.96 | 0.6 | undecidable | manual | S | 219 | 16.872 | 112 | 0.19 | 49 |
IV.VISG.HHZ. | 2023-09-21T23:26:27.17 | 1.0 | undecidable | manual | P | 305 | 22.4553 | 107 | 0 | 25 |
IV.SEI.HHZ. | 2023-09-21T23:26:27.42 | 1.0 | positive | manual | P | 265 | 24.5532 | 106 | -0.15 | 25 |
IV.SFI.EHZ. | 2023-09-21T23:26:27.31 | 0.1 | undecidable | manual | P | 142 | 23.5542 | 106 | -0.06 | 100 |
IV.VMGN.HHZ. | 2023-09-21T23:26:26.28 | 0.6 | positive | manual | P | 219 | 16.872 | 112 | 0.18 | 49 |
IV.RINC.EHZ. | 2023-09-21T23:26:26.99 | 1.0 | undecidable | manual | P | 193 | 21.1677 | 108 | 0.08 | 25 |
IV.LMD.HHZ. | 2023-09-21T23:26:24.99 | 0.6 | undecidable | manual | S | 80 | 3.3966 | 154 | -0.13 | 51 |
IV.LMD.HHZ. | 2023-09-21T23:26:23.98 | 1.0 | undecidable | manual | P | 80 | 3.3966 | 154 | -0.02 | 26 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:0.0 | 0.00033966564999999996 | 0.1408 | AML | other | m | 2023-09-21T23:26:25.06 |
IV.VMGN.HHE. | ML:0.2 | 0.000014096555 | 0.2432 | AML | other | m | 2023-09-21T23:26:29.54 |
IV.VMGN.HHN. | ML:-0.3 | 0.00000533915955 | 44.6336 | AML | other | m | 2023-09-21T23:26:26.22 |
IV.RINC.EHE. | ML:0.5 | 0.000023296455 | 0.2048 | AML | other | m | 2023-09-21T23:26:30.43 |
IV.RINC.EHN. | ML:0.5 | 0.0000267456505 | 0.8576 | AML | other | m | 2023-09-21T23:26:34.49 |
IV.VISG.HHE. | ML:0.3 | 0.000012949348000000001 | 0.1152 | AML | other | m | 2023-09-21T23:26:31.07 |
IV.VISG.HHN. | ML:0.3 | 0.00001514394 | 0.1152 | AML | other | m | 2023-09-21T23:26:31.61 |
IV.SFI.EHE. | ML:0.5 | 0.000019661135 | 0.1152 | AML | other | m | 2023-09-21T23:26:31.88 |
IV.SFI.EHN. | ML:0.6 | 0.000026667506 | 0.192 | AML | other | m | 2023-09-21T23:26:31.64 |
IV.SFI.HNE. | ML:1.3 | 0.0001295524 | 0.9088 | AML | other | m | 2023-09-21T23:26:35.94 |
IV.SFI.HNN. | ML:1.2 | 0.00010428877 | 0.7296 | AML | other | m | 2023-09-21T23:26:33.85 |
IV.SEI.HHE. | ML:0.8 | 0.000032728955 | 0.2432 | AML | other | m | 2023-09-21T23:26:31.33 |
IV.SEI.HHN. | ML:0.8 | 0.00004074787 | 0.32 | AML | other | m | 2023-09-21T23:26:34.46 |
IV.RUFI.EHE. | ML:0.3 | 0.0000078100405 | 0.5632 | AML | other | m | 2023-09-21T23:26:30.03 |
IV.RUFI.EHN. | ML:0.8 | 0.000029519675 | 2.3168 | AML | other | m | 2023-09-21T23:26:40.83 |