A magnitude ML 0.9 earthquake occured in region: 5 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0880, 11.6690 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 | 5 | 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 | 15 | 799 | 13530 |
Casola Valsenio | RA | 16 | 2617 | 16147 |
Brisighella | RA | 17 | 7639 | 23786 |
Dovadola | FC | 18 | 1653 | 25439 |
San Godenzo | FI | 18 | 1167 | 26606 |
Castel del Rio | BO | 19 | 1246 | 27852 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-09-24 09:06:52 |
44.0875 | 11.6687 | 6 | 2023-09-24 09:12:36 |
Sala Sismica INGV-Roma | 121418071 |
Field | Value |
---|---|
Time (UTC) | 2023-09-24 09:06:52 ± 0.1 |
Latitude | 44.0875 ± 0.0036 |
Longitude | 11.6687 ± 0.0038 |
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 | 121418071 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 361 |
Semi-minor axis of confidence ellipse (meter) | 205 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 202 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 360.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 169 |
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) | 0.12 |
Epicentral distance of station closest to the epicenter (degree) | 0.02968 |
Epicentral distance of station farthest from the epicenter (degree) | 0.22483 |
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 | 0.9 |
Uncertainty | 0.5 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 121418071 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-24 09:12:36 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SEI.HHZ. | 2023-09-24T09:07:01.67 | 0.6 | undecidable | manual | S | 262 | 24.9528 | 102 | 0.11 | 47 |
IV.SFI.HNZ. | 2023-09-24T09:07:01.76 | 0.6 | undecidable | manual | S | 145 | 24.753 | 102 | 0.27 | 46 |
IV.RINC.EHZ. | 2023-09-24T09:07:00.90 | 0.6 | undecidable | manual | S | 192 | 22.8549 | 103 | 0.06 | 48 |
IV.VISG.HHZ. | 2023-09-24T09:07:00.74 | 0.6 | undecidable | manual | S | 301 | 21.7671 | 104 | 0.26 | 46 |
IV.VMGN.HHZ. | 2023-09-24T09:06:59.29 | 0.6 | undecidable | manual | S | 216 | 18.2706 | 107 | -0.03 | 48 |
IV.SFI.HNZ. | 2023-09-24T09:06:57.63 | 0.1 | undecidable | manual | P | 145 | 24.753 | 102 | -0.14 | 94 |
IV.VISG.HHZ. | 2023-09-24T09:06:57.14 | 1.0 | undecidable | manual | P | 301 | 21.7671 | 104 | -0.05 | 24 |
IV.RINC.EHZ. | 2023-09-24T09:06:57.43 | 0.6 | negative | manual | P | 192 | 22.8549 | 103 | 0.04 | 48 |
IV.SEI.HHZ. | 2023-09-24T09:06:57.57 | 0.3 | positive | manual | P | 262 | 24.9528 | 102 | -0.24 | 69 |
IV.VMGN.HHZ. | 2023-09-24T09:06:56.60 | 0.6 | positive | manual | P | 216 | 18.2706 | 107 | 0.09 | 48 |
IT.MRR.HGZ. | 2023-09-24T09:06:55.34 | 0.6 | undecidable | manual | S | 243 | 5.7942 | 133 | -0.12 | 49 |
IT.MRR.HGZ. | 2023-09-24T09:06:54.30 | 0.1 | undecidable | manual | P | 243 | 5.7942 | 133 | 0.01 | 99 |
IV.LMD.HHZ. | 2023-09-24T09:06:54.89 | 0.6 | undecidable | manual | S | 110 | 3.2967 | 149 | -0.01 | 50 |
IV.LMD.HHZ. | 2023-09-24T09:06:53.97 | 0.1 | undecidable | manual | P | 110 | 3.2967 | 149 | 0 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SEI.HHE. | ML:1.2 | 0.0000981 | 0.24 | AML | other | m | 2023-09-24T09:07:01.85 |
IV.SEI.HHN. | ML:1.5 | 0.000191 | 1.6 | AML | other | m | 2023-09-24T09:07:01.99 |
IV.VISG.HHE. | ML:0.4 | 0.000019550025 | 0.1984 | AML | other | m | 2023-09-24T09:07:00.92 |
IV.VISG.HHN. | ML:0.4 | 0.0000197604515 | 0.1024 | AML | other | m | 2023-09-24T09:07:01.22 |