A magnitude ML 0.9 earthquake occured in region: 4 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0760, 11.6640 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 |
Modigliana | FC | 14 | 4560 | 10821 |
Premilcuore | FC | 14 | 799 | 11620 |
Rocca San Casciano | FC | 14 | 1910 | 13530 |
Casola Valsenio | RA | 17 | 2617 | 16147 |
San Godenzo | FI | 17 | 1167 | 17314 |
Brisighella | RA | 18 | 7639 | 24953 |
Dovadola | FC | 19 | 1653 | 26606 |
Castel del Rio | BO | 20 | 1246 | 27852 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-09-22 00:11:18 |
44.0762 | 11.6643 | 7 | 2023-09-22 00:22:27 |
Sala Sismica INGV-Roma | 121332781 |
Field | Value |
---|---|
Time (UTC) | 2023-09-22 00:11:18 ± 0.13 |
Latitude | 44.0762 ± 0.0036 |
Longitude | 11.6643 ± 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 | 121332781 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 380 |
Semi-minor axis of confidence ellipse (meter) | 278 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 191 |
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) | 144 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
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) | 0.25361 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 121332781 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-22 00:22:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BOSL.HHZ. | 2023-09-22T00:11:28.39 | 0.6 | undecidable | manual | S | 235 | 28.1496 | 103 | -0.03 | 48 |
IV.SEI.HHZ. | 2023-09-22T00:11:27.16 | 0.6 | undecidable | manual | S | 264 | 24.4533 | 105 | -0.01 | 48 |
IV.SFI.EHZ. | 2023-09-22T00:11:27.19 | 0.6 | undecidable | manual | S | 142 | 23.9538 | 105 | 0.19 | 47 |
IV.VISG.HHZ. | 2023-09-22T00:11:26.74 | 0.6 | undecidable | manual | S | 304 | 22.1556 | 107 | 0.34 | 45 |
IV.VMGN.HHZ. | 2023-09-22T00:11:24.81 | 0.6 | undecidable | manual | S | 218 | 17.0718 | 111 | 0.08 | 48 |
IV.BOSL.HHZ. | 2023-09-22T00:11:24.06 | 0.6 | positive | manual | P | 235 | 28.1496 | 103 | -0.11 | 47 |
IV.SEI.HHZ. | 2023-09-22T00:11:23.27 | 0.1 | positive | manual | P | 264 | 24.4533 | 105 | -0.19 | 93 |
IV.SFI.EHZ. | 2023-09-22T00:11:23.28 | 0.6 | undecidable | manual | P | 142 | 23.9538 | 105 | -0.07 | 48 |
IV.VMGN.HHZ. | 2023-09-22T00:11:22.19 | 0.6 | positive | manual | P | 218 | 17.0718 | 111 | 0.14 | 48 |
IV.VISG.HHZ. | 2023-09-22T00:11:22.98 | 0.3 | undecidable | manual | P | 304 | 22.1556 | 107 | -0.03 | 72 |
IV.LMD.HHZ. | 2023-09-22T00:11:20.82 | 0.6 | undecidable | manual | S | 88 | 3.3966 | 153 | -0.13 | 49 |
IV.LMD.HHZ. | 2023-09-22T00:11:19.88 | 0.1 | undecidable | manual | P | 88 | 3.3966 | 153 | 0.02 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHN. | ML:1.0 | 0.00009575 | 0.38 | AML | other | m | 2023-09-22T00:11:25.42 |
IV.VMGN.HHE. | ML:1.0 | 0.00008494999999999999 | 0.18 | AML | other | m | 2023-09-22T00:11:25.42 |
IV.VISG.HHN. | ML:0.8 | 0.00005105 | 0.24 | AML | other | m | 2023-09-22T00:11:26.95 |
IV.VISG.HHE. | ML:0.7 | 0.0000332 | 0.4 | AML | other | m | 2023-09-22T00:11:27.43 |
IV.SFI.EHE. | ML:1.0 | 0.00006644999999999999 | 0.16 | AML | other | m | 2023-09-22T00:11:27.24 |
IV.SEI.HHE. | ML:1.2 | 0.00008915000000000001 | 1.4 | AML | other | m | 2023-09-22T00:11:27.97 |
IV.SFI.EHN. | ML:1.0 | 0.00006285000000000001 | 0.36 | AML | other | m | 2023-09-22T00:11:27.51 |
IV.BOSL.HHE. | ML:0.4 | 0.0000136 | 0.78 | AML | other | m | 2023-09-22T00:11:29.87 |
IV.BOSL.HHN. | ML:0.6 | 0.0000212 | 0.42 | AML | other | m | 2023-09-22T00:11:29.92 |
IV.SEI.HHN. | ML:1.4 | 0.000144 | 0.48 | AML | other | m | 2023-09-22T00:11:30.88 |