A magnitude ML 0.9 earthquake occured in region: 4 km E Marradi (FI), on
and geographic coordinates (lat, lon) 44.0770, 11.6630 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 | 4 | 3139 | 3139 |
Tredozio | FC | 7 | 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 | 15 | 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 00:08:57 |
44.0768 | 11.6627 | 6 | 2023-09-22 00:25:03 |
Sala Sismica INGV-Roma | 121332801 |
Field | Value |
---|---|
Time (UTC) | 2023-09-22 00:08:57 ± 0.13 |
Latitude | 44.0768 ± 0.0045 |
Longitude | 11.6627 ± 0.0063 |
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 | 121332801 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 608 |
Semi-minor axis of confidence ellipse (meter) | 146 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 312 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 610.0 |
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 | 16 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.26260 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 121332801 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-22 00:25:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ATFO.HHZ. | 2023-09-22T00:09:13.85 | 3.0 | positive | manual | P | -0.07 | 0 | |||
IV.RINC.EHE. | 2023-09-22T00:09:04.91 | 0.3 | undecidable | manual | S | 192 | 21.5673 | 106 | -0.12 | 72 |
IV.VMGN.HHZ. | 2023-09-22T00:09:03.76 | 0.3 | undecidable | manual | S | 217 | 17.0718 | 110 | 0.22 | 71 |
IV.SEI.HHZ. | 2023-09-22T00:09:02.01 | 0.3 | undecidable | manual | P | 264 | 24.3534 | 104 | -0.27 | 70 |
IT.MOG.HNZ. | 2023-09-22T00:09:02.01 | 0.1 | undecidable | manual | S | 39 | 13.2756 | 115 | -0.3 | 94 |
IV.RUFI.EHZ. | 2023-09-22T00:09:02.84 | 0.3 | undecidable | manual | P | 205 | 29.1486 | 102 | -0.38 | 67 |
IV.BOSL.HHZ. | 2023-09-22T00:09:02.83 | 0.3 | undecidable | manual | P | 235 | 28.1496 | 102 | -0.19 | 70 |
IV.SFI.EHZ. | 2023-09-22T00:09:02.17 | 0.6 | undecidable | manual | P | 142 | 24.0537 | 104 | -0.06 | 48 |
IV.VMGN.HHZ. | 2023-09-22T00:09:01.03 | 0.1 | undecidable | manual | P | 217 | 17.0718 | 110 | 0.15 | 96 |
IV.RINC.EHE. | 2023-09-22T00:09:01.94 | 0.3 | undecidable | manual | P | 192 | 21.5673 | 106 | 0.2 | 71 |
IV.VISG.HHZ. | 2023-09-22T00:09:01.96 | 0.1 | undecidable | manual | P | 304 | 22.0668 | 105 | 0.13 | 96 |
IT.MOG.HNZ. | 2023-09-22T00:09:00.65 | 0.3 | undecidable | manual | P | 39 | 13.2756 | 115 | 0.48 | 68 |
IT.MRR.HGE. | 2023-09-22T00:08:59.90 | 0.1 | undecidable | manual | S | 253 | 4.995 | 141 | -0.07 | 100 |
IV.LMD.HHE. | 2023-09-22T00:08:59.68 | 0.3 | undecidable | manual | S | 89 | 3.5964 | 150 | -0.01 | 76 |
IT.MRR.HGE. | 2023-09-22T00:08:58.90 | 0.1 | undecidable | manual | P | 253 | 4.995 | 141 | 0.08 | 100 |
IV.LMD.HHE. | 2023-09-22T00:08:58.74 | 0.1 | undecidable | manual | P | 89 | 3.5964 | 150 | 0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHN. | ML:0.8 | 0.000066317 | 0.12 | AML | other | m | 2023-09-22T00:09:04.29 |
IV.VMGN.HHE. | ML:0.9 | 0.00006845 | 0.18 | AML | other | m | 2023-09-22T00:09:04.29 |
IV.VISG.HHE. | ML:0.4 | 0.0000178076585 | 0.08 | AML | other | m | 2023-09-22T00:09:05.88 |
IV.SFI.EHN. | ML:0.8 | 0.000043924645 | 0.14 | AML | other | m | 2023-09-22T00:09:06.38 |
IV.VISG.HHN. | ML:0.7 | 0.000035283265 | 0.1 | AML | other | m | 2023-09-22T00:09:05.83 |
IV.SFI.EHE. | ML:0.8 | 0.00004438735 | 0.16 | AML | other | m | 2023-09-22T00:09:06.12 |
IV.SEI.HHE. | ML:1.1 | 0.00007519999999999998 | 0.64 | AML | other | m | 2023-09-22T00:09:06.40 |
IV.SEI.HHN. | ML:1.2 | 0.00011145 | 0.46 | AML | other | m | 2023-09-22T00:09:09.50 |