A magnitude ML 0.8 earthquake occured in region: 2 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0680, 11.6310 at 9 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 | 2 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 8 | 1154 | 4293 |
Tredozio | FC | 9 | 1212 | 5505 |
Portico e San Benedetto | FC | 13 | 756 | 6261 |
Premilcuore | FC | 15 | 799 | 7060 |
San Godenzo | FI | 16 | 1167 | 8227 |
Modigliana | FC | 16 | 4560 | 12787 |
Rocca San Casciano | FC | 17 | 1910 | 14697 |
Casola Valsenio | RA | 17 | 2617 | 17314 |
Castel del Rio | BO | 19 | 1246 | 18560 |
Vicchio | FI | 20 | 8044 | 26604 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2023-12-18 07:59:44 |
44.0682 | 11.6308 | 9 | 2023-12-18 08:10:18 |
Sala Sismica INGV-Roma | 124123421 |
Field | Value |
---|---|
Time (UTC) | 2023-12-18 07:59:44 ± 0.06 |
Latitude | 44.0682 ± 0.0027 |
Longitude | 11.6308 ± 0.0025 |
Depth (km) | 9 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 124123421 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 251 |
Semi-minor axis of confidence ellipse (meter) | 152 |
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) | 250.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 129 |
Number of associated phases, regardless of their use for origin computation | 24 |
Number of defining phases | 16 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32915 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 124123421 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-12-18 08:10:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
CR.ZAG.BHZ. | 2023-12-18T08:01:19.20 | 3.0 | undecidable | manual | Sn | 7.91 | 0 | |||
IV.LPEL.HHZ. | 2023-12-18T08:00:48.74 | 3.0 | undecidable | manual | Sn | -0.42 | 0 | |||
IV.CERT.HHZ. | 2023-12-18T08:00:44.19 | 3.0 | undecidable | manual | Sg | 3.57 | 0 | |||
IV.ZEN8.EHZ. | 2023-12-18T08:00:36.51 | 3.0 | undecidable | manual | Sn | 0.45 | 0 | |||
IV.MMO1.EHZ. | 2023-12-18T08:00:24.96 | 3.0 | undecidable | manual | S | 1.7 | 0 | |||
IV.MMO1.EHZ. | 2023-12-18T08:00:06.09 | 3.0 | positive | manual | P | 2.1 | 0 | |||
IV.IMOL.EHZ. | 2023-12-18T07:59:56.72 | 3.0 | undecidable | manual | Sg | 0.07 | 0 | |||
IV.MOCL.EHE. | 2023-12-18T07:59:56.85 | 0.3 | undecidable | manual | S | 259 | 36.5412 | 50 | 0.02 | 71 |
IV.RUFI.EHZ. | 2023-12-18T07:59:54.02 | 0.3 | undecidable | manual | S | 201 | 27.3504 | 108 | -0.09 | 72 |
IV.BOSL.HHN. | 2023-12-18T07:59:53.36 | 0.6 | undecidable | manual | S | 233 | 25.5522 | 109 | -0.16 | 47 |
IV.SFI.EHE. | 2023-12-18T07:59:53.44 | 0.3 | undecidable | manual | S | 136 | 25.0527 | 110 | 0.08 | 72 |
IV.FRON.EHZ. | 2023-12-18T07:59:52.55 | 3.0 | undecidable | manual | P | -0.02 | 0 | |||
IV.SEI.HHZ. | 2023-12-18T07:59:52.24 | 0.3 | undecidable | manual | S | 266 | 21.7671 | 112 | -0.06 | 73 |
IV.VISG.HHZ. | 2023-12-18T07:59:51.97 | 0.3 | undecidable | manual | S | 311 | 20.5683 | 113 | 0.04 | 73 |
IV.VMGN.HHZ. | 2023-12-18T07:59:50.23 | 0.3 | undecidable | manual | S | 212 | 14.874 | 121 | 0.08 | 73 |
IV.MOCL.EHE. | 2023-12-18T07:59:50.94 | 1.0 | undecidable | manual | P | 259 | 36.5412 | 50 | -0.52 | 21 |
IV.RUFI.EHZ. | 2023-12-18T07:59:49.83 | 0.3 | undecidable | manual | P | 201 | 27.3504 | 108 | -0.06 | 72 |
IV.SFI.EHE. | 2023-12-18T07:59:49.48 | 0.1 | undecidable | manual | P | 136 | 25.0527 | 110 | 0.02 | 97 |
IV.BOSL.HHN. | 2023-12-18T07:59:49.60 | 0.6 | undecidable | manual | P | 233 | 25.5522 | 109 | 0.05 | 48 |
IV.VISG.HHZ. | 2023-12-18T07:59:48.68 | 0.1 | undecidable | manual | P | 311 | 20.5683 | 113 | 0.04 | 97 |
IV.SEI.HHZ. | 2023-12-18T07:59:48.94 | 0.3 | undecidable | manual | P | 266 | 21.7671 | 112 | 0.09 | 72 |
IV.LMD.HHZ. | 2023-12-18T07:59:47.72 | 0.3 | undecidable | manual | S | 80 | 6.1938 | 145 | -0.19 | 73 |
IV.VMGN.HHZ. | 2023-12-18T07:59:47.90 | 0.6 | positive | manual | P | 212 | 14.874 | 121 | 0.29 | 47 |
IV.LMD.HHZ. | 2023-12-18T07:59:46.35 | 0.1 | undecidable | manual | P | 80 | 6.1938 | 145 | 0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:1.1 | 0.0002265 | 0.26 | AML | other | m | 2023-12-18T07:59:47.84 |
IV.LMD.HHN. | ML:0.9 | 0.000142 | 0.22 | AML | other | m | 2023-12-18T07:59:47.87 |
IV.VMGN.HHE. | ML:0.4 | 0.000024800000000000003 | 0.92 | AML | other | m | 2023-12-18T07:59:50.36 |
IV.VMGN.HHN. | ML:0.4 | 0.000026450000000000003 | 0.56 | AML | other | m | 2023-12-18T07:59:51.67 |
IV.VISG.HHN. | ML:0.7 | 0.000040300000000000004 | 0.1 | AML | other | m | 2023-12-18T07:59:52.41 |
IV.VISG.HHE. | ML:0.5 | 0.000025099999999999997 | 0.22 | AML | other | m | 2023-12-18T07:59:52.48 |
IV.SEI.HHN. | ML:1.3 | 0.0001305 | 0.2 | AML | other | m | 2023-12-18T07:59:52.72 |
IV.SEI.HHE. | ML:0.9 | 0.000060450000000000006 | 0.66 | AML | other | m | 2023-12-18T07:59:52.51 |