A magnitude ML 1.0 earthquake occured in region: 3 km NE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0900, 11.6410 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 | 3 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 8 | 1154 | 4293 |
Tredozio | FC | 8 | 1212 | 5505 |
Portico e San Benedetto | FC | 13 | 756 | 6261 |
Modigliana | FC | 14 | 4560 | 10821 |
Casola Valsenio | RA | 15 | 2617 | 13438 |
Rocca San Casciano | FC | 17 | 1910 | 15348 |
Premilcuore | FC | 17 | 799 | 16147 |
Castel del Rio | BO | 18 | 1246 | 17393 |
Brisighella | RA | 18 | 7639 | 25032 |
San Godenzo | FI | 18 | 1167 | 26199 |
Fontanelice | BO | 20 | 1943 | 28142 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2023-09-22 02:22:49 |
44.0903 | 11.6407 | 5 | 2023-09-22 02:26:35 |
Sala Sismica INGV-Roma | 121334501 |
Field | Value |
---|---|
Time (UTC) | 2023-09-22 02:22:49 ± 0.1 |
Latitude | 44.0903 ± 0.0027 |
Longitude | 11.6407 ± 0.0038 |
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 | 121334501 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 348 |
Semi-minor axis of confidence ellipse (meter) | 210 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 322 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 350.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 105 |
Number of associated phases, regardless of their use for origin computation | 18 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24911 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 121334501 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-22 02:26:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PIEI.HHZ. | 2023-09-22T02:23:06.69 | 3.0 | negative | manual | P | 2.32 | 0 | |||
IV.FRON.EHZ. | 2023-09-22T02:23:05.83 | 3.0 | negative | manual | P | -0.16 | 0 | |||
IV.BOSL.HHZ. | 2023-09-22T02:22:59.18 | 0.6 | undecidable | manual | S | 230 | 27.6501 | 100 | 0.17 | 47 |
IV.VISG.HHZ. | 2023-09-22T02:22:56.43 | 0.6 | undecidable | manual | S | 304 | 19.7691 | 104 | 0.11 | 48 |
IV.MOCL.EHZ. | 2023-09-22T02:22:56.29 | 3.0 | negative | manual | P | 0.4 | 0 | |||
IV.VMGN.HHZ. | 2023-09-22T02:22:55.66 | 0.6 | undecidable | manual | S | 210 | 17.3715 | 105 | 0.14 | 48 |
IV.BOSL.HHZ. | 2023-09-22T02:22:54.73 | 1.0 | negative | manual | P | 230 | 27.6501 | 100 | -0.16 | 23 |
IV.RUFI.EHZ. | 2023-09-22T02:22:54.82 | 3.0 | undecidable | manual | P | 0.04 | 0 | |||
IV.SFI.EHZ. | 2023-09-22T02:22:54.16 | 3.0 | negative | manual | P | 0.11 | 0 | |||
IT.MOG.HNE. | 2023-09-22T02:22:54.50 | 0.6 | undecidable | manual | S | 49 | 13.3755 | 110 | 0.29 | 47 |
IV.SEI.HHZ. | 2023-09-22T02:22:53.66 | 3.0 | positive | manual | P | 0.01 | 0 | |||
IV.VISG.HHZ. | 2023-09-22T02:22:53.16 | 0.1 | undecidable | manual | P | 304 | 19.7691 | 104 | -0.18 | 95 |
IT.MOG.HNE. | 2023-09-22T02:22:52.15 | 0.1 | undecidable | manual | P | 49 | 13.3755 | 110 | 0.03 | 99 |
IV.VMGN.HHZ. | 2023-09-22T02:22:52.87 | 0.1 | positive | manual | P | 210 | 17.3715 | 105 | -0.01 | 99 |
IV.LMD.HHZ. | 2023-09-22T02:22:51.67 | 0.6 | undecidable | manual | S | 105 | 5.4945 | 131 | -0.13 | 49 |
IT.MRR.HGZ. | 2023-09-22T02:22:51.52 | 0.6 | undecidable | manual | S | 226 | 4.1958 | 139 | 0.05 | 50 |
IV.LMD.HHZ. | 2023-09-22T02:22:50.52 | 1.0 | undecidable | manual | P | 105 | 5.4945 | 131 | -0.21 | 24 |
IT.MRR.HGZ. | 2023-09-22T02:22:50.49 | 0.1 | undecidable | manual | P | 226 | 4.1958 | 139 | -0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHE. | ML:1.0 | 0.00009725 | 0.42 | AML | other | m | 2023-09-22T02:22:56.35 |
IV.VMGN.HHN. | ML:1.1 | 0.00011565 | 0.4 | AML | other | m | 2023-09-22T02:22:56.37 |
IV.VISG.HHN. | ML:0.9 | 0.00006395000000000001 | 1.42 | AML | other | m | 2023-09-22T02:22:56.14 |
IV.VISG.HHE. | ML:0.7 | 0.00004295 | 1.08 | AML | other | m | 2023-09-22T02:22:57.98 |
IV.SEI.HHN. | ML:1.6 | 0.0002855 | 0.26 | AML | other | m | 2023-09-22T02:22:57.91 |
IV.SFI.EHN. | ML:1.0 | 0.000061 | 0.2 | AML | other | m | 2023-09-22T02:22:58.78 |
IV.SFI.EHE. | ML:1.1 | 0.00007915 | 1.24 | AML | other | m | 2023-09-22T02:22:59.23 |
IV.BOSL.HHN. | ML:0.9 | 0.0000447 | 0.24 | AML | other | m | 2023-09-22T02:22:59.61 |
IV.BOSL.HHE. | ML:0.7 | 0.0000315 | 1.24 | AML | other | m | 2023-09-22T02:22:59.62 |
IV.SEI.HHE. | ML:1.3 | 0.00014800000000000002 | 0.42 | AML | other | m | 2023-09-22T02:23:00.21 |