A magnitude ML 0.8 earthquake occured in region: 4 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0800, 11.6680 at 5 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 | 13 | 4560 | 10821 |
Rocca San Casciano | FC | 14 | 1910 | 12731 |
Premilcuore | FC | 14 | 799 | 13530 |
Casola Valsenio | RA | 16 | 2617 | 16147 |
San Godenzo | FI | 17 | 1167 | 17314 |
Brisighella | RA | 18 | 7639 | 24953 |
Dovadola | FC | 18 | 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 0.8 | 2023-09-21 09:58:35 |
44.0803 | 11.6677 | 5 | 2023-09-21 10:10:28 |
Sala Sismica INGV-Roma | 121308181 |
Field | Value |
---|---|
Time (UTC) | 2023-09-21 09:58:35 ± 0.13 |
Latitude | 44.0803 ± 0.0036 |
Longitude | 11.6677 ± 0.0050 |
Depth (km) | 5 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121308181 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 430 |
Semi-minor axis of confidence ellipse (meter) | 105 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 316 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 95 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.02878 |
Epicentral distance of station farthest from the epicenter (degree) | 0.26800 |
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 | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 121308181 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-21 10:10:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHZ. | 2023-09-21T09:58:45.97 | 0.6 | undecidable | manual | S | 205 | 29.748 | 100 | -0.16 | 46 |
IV.SEI.HHZ. | 2023-09-21T09:58:44.64 | 0.6 | undecidable | manual | S | 263 | 24.8529 | 102 | 0.18 | 47 |
IV.SFI.EHZ. | 2023-09-21T09:58:44.35 | 0.6 | undecidable | manual | S | 144 | 24.1536 | 103 | 0.11 | 47 |
IV.VISG.HHZ. | 2023-09-21T09:58:43.78 | 0.6 | undecidable | manual | S | 303 | 22.1556 | 104 | 0.22 | 47 |
IV.RINC.EHZ. | 2023-09-21T09:58:43.91 | 0.6 | undecidable | manual | S | 193 | 22.0668 | 104 | 0.38 | 45 |
IV.VMGN.HHZ. | 2023-09-21T09:58:42.41 | 0.6 | undecidable | manual | S | 218 | 17.6712 | 107 | 0.36 | 45 |
IV.RINC.EHZ. | 2023-09-21T09:58:40.24 | 0.6 | negative | manual | P | 193 | 22.0668 | 104 | 0.04 | 48 |
IV.SFI.EHZ. | 2023-09-21T09:58:40.43 | 0.6 | negative | manual | P | 144 | 24.1536 | 103 | -0.18 | 47 |
IV.SEI.HHZ. | 2023-09-21T09:58:40.48 | 0.1 | negative | manual | P | 263 | 24.8529 | 102 | -0.26 | 92 |
IT.MOG.HNZ. | 2023-09-21T09:58:40.85 | 0.6 | undecidable | manual | S | 38 | 12.7761 | 113 | 0.4 | 45 |
IV.RUFI.EHZ. | 2023-09-21T09:58:40.86 | 1.0 | undecidable | manual | P | 205 | 29.748 | 100 | -0.84 | 19 |
IV.VMGN.HHZ. | 2023-09-21T09:58:39.47 | 0.6 | positive | manual | P | 218 | 17.6712 | 107 | 0.12 | 48 |
IV.VISG.HHZ. | 2023-09-21T09:58:39.98 | 0.3 | undecidable | manual | P | 303 | 22.1556 | 104 | -0.24 | 69 |
IT.MOG.HNZ. | 2023-09-21T09:58:38.50 | 0.1 | undecidable | manual | P | 38 | 12.7761 | 113 | 0.08 | 97 |
IT.MRR.HGZ. | 2023-09-21T09:58:38.31 | 0.6 | undecidable | manual | S | 251 | 5.3946 | 135 | 0 | 50 |
IT.MRR.HGZ. | 2023-09-21T09:58:37.18 | 0.1 | undecidable | manual | P | 251 | 5.3946 | 135 | 0 | 100 |
IV.LMD.HHZ. | 2023-09-21T09:58:37.51 | 0.6 | undecidable | manual | S | 96 | 3.1968 | 149 | -0.31 | 47 |
IV.LMD.HHZ. | 2023-09-21T09:58:36.65 | 1.0 | undecidable | manual | P | 96 | 3.1968 | 149 | -0.25 | 24 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:0.7 | 0.00004815 | 1.8 | AML | other | m | 2023-09-21T09:58:42.99 |
IV.VMGN.HHN. | ML:0.5 | 0.000028707150000000002 | 0.4608 | AML | other | m | 2023-09-21T09:58:44.92 |
IV.SEI.HHE. | ML:1.3 | 0.000127 | 0.22 | AML | other | m | 2023-09-21T09:58:44.85 |
IV.SEI.HHN. | ML:1.6 | 0.000259 | 0.22 | AML | other | m | 2023-09-21T09:58:44.99 |
IV.RUFI.EHN. | ML:0.8 | 0.00002869238 | 0.2624 | AML | other | m | 2023-09-21T09:58:46.35 |
IV.RUFI.EHE. | ML:1.9 | 0.00041941105000000003 | 6.5216 | AML | other | m | 2023-09-21T09:58:50.34 |
IV.LMD.HHE. | ML:0.0 | 0.00042135475 | 0.1408 | AML | other | m | 2023-09-21T09:58:38.28 |
IV.LMD.HHN. | ML:0.0 | 0.001498166 | 0.1408 | AML | other | m | 2023-09-21T09:58:37.59 |
IV.VISG.HHE. | ML:0.4 | 0.00001781589 | 0.1216 | AML | other | m | 2023-09-21T09:58:43.86 |
IV.VISG.HHN. | ML:0.6 | 0.000028995340000000003 | 0.1408 | AML | other | m | 2023-09-21T09:58:44.22 |
IV.RINC.EHE. | ML:0.5 | 0.0000264921755 | 0.8384 | AML | other | m | 2023-09-21T09:58:44.42 |
IV.RINC.EHN. | ML:0.7 | 0.00004086117 | 1.44 | AML | other | m | 2023-09-21T09:58:44.91 |
IV.SFI.EHE. | ML:0.7 | 0.000028020653 | 0.1152 | AML | other | m | 2023-09-21T09:58:45.07 |
IV.SFI.EHN. | ML:0.7 | 0.00003365515 | 0.16 | AML | other | m | 2023-09-21T09:58:45.04 |
IV.SFI.HNE. | ML:1.1 | 0.00008996994999999999 | 0.7808 | AML | other | m | 2023-09-21T09:58:44.82 |
IV.SFI.HNN. | ML:1.1 | 0.00009075323999999999 | 0.6528 | AML | other | m | 2023-09-21T09:58:44.81 |