A magnitude ML 1.0 earthquake occured in region: 2 km SW Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.0970, 11.5280 at 10 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 |
---|---|---|---|---|
Palazzuolo sul Senio | FI | 2 | 1154 | 1154 |
Marradi | FI | 7 | 3139 | 4293 |
Firenzuola | FI | 12 | 4726 | 9019 |
Castel del Rio | BO | 13 | 1246 | 10265 |
Casola Valsenio | RA | 16 | 2617 | 12882 |
Tredozio | FC | 17 | 1212 | 14094 |
Fontanelice | BO | 18 | 1943 | 16037 |
Vicchio | FI | 19 | 8044 | 24081 |
Borgo San Lorenzo | FI | 19 | 18211 | 42292 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2020-12-18 21:23:53 |
44.0968 | 11.5285 | 10 | 2020-12-18 21:32:24 |
Sala Sismica INGV-Roma | 85529321 |
Field | Value |
---|---|
Time (UTC) | 2020-12-18 21:23:53 ± 0.09 |
Latitude | 44.0968 ± 0.0063 |
Longitude | 11.5285 ± 0.0100 |
Depth (km) | 10 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 85529321 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 680 |
Semi-minor axis of confidence ellipse (meter) | 618 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 238 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 680.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 89 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.28 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35343 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 85529321 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-18 21:32:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VVLD.HHZ. | 2020-12-18T21:24:50.42 | 3.0 | undecidable | manual | Sn | 0.63 | 0 | |||
IV.MTCE.HHZ. | 2020-12-18T21:24:42.60 | 3.0 | undecidable | manual | Sg | 3.97 | 0 | |||
IV.ATCC.EHZ. | 2020-12-18T21:24:15.79 | 3.0 | undecidable | manual | Sg | 1.38 | 0 | |||
IV.ASQU.HHZ. | 2020-12-18T21:24:07.22 | 0.3 | undecidable | manual | S | 148 | 39.2274 | 50 | 0.08 | 68 |
IV.RUFI.EHZ. | 2020-12-18T21:24:04.01 | 0.3 | undecidable | manual | S | 183 | 28.749 | 50 | -0.32 | 71 |
IV.BRIS.HHZ. | 2020-12-18T21:24:03.34 | 0.3 | undecidable | manual | S | 53 | 23.6541 | 113 | 0.44 | 62 |
IV.COR1.EHZ. | 2020-12-18T21:24:02.18 | 3.0 | undecidable | manual | P | -1.04 | 0 | |||
IV.ASQU.HHZ. | 2020-12-18T21:24:01.37 | 0.1 | undecidable | manual | P | 148 | 39.2274 | 50 | -0.21 | 94 |
IV.SEI.HHZ. | 2020-12-18T21:24:00.16 | 0.3 | undecidable | manual | S | 251 | 14.3745 | 125 | 0.1 | 74 |
IV.RONT.HHZ. | 2020-12-18T21:24:00.48 | 0.3 | undecidable | manual | S | 214 | 13.7751 | 126 | 0.58 | 70 |
IV.RUFI.EHZ. | 2020-12-18T21:23:59.76 | 0.1 | undecidable | manual | P | 183 | 28.749 | 50 | -0.2 | 96 |
IV.VISG.HHZ. | 2020-12-18T21:23:59.64 | 0.3 | undecidable | manual | S | 324 | 12.6762 | 128 | 0.04 | 74 |
IV.BRIS.HHZ. | 2020-12-18T21:23:59.21 | 0.1 | undecidable | manual | P | 53 | 23.6541 | 113 | 0.08 | 94 |
IV.VISG.HHZ. | 2020-12-18T21:23:57.31 | 0.1 | undecidable | manual | P | 324 | 12.6762 | 128 | 0.09 | 100 |
IV.RONT.HHZ. | 2020-12-18T21:23:57.56 | 0.1 | undecidable | manual | P | 214 | 13.7751 | 126 | 0.17 | 99 |
IV.PE3.EHZ. | 2020-12-18T21:23:57.07 | 3.0 | negative | manual | P | -1.42 | 0 | |||
IV.SEI.HHZ. | 2020-12-18T21:23:57.58 | 0.1 | undecidable | manual | P | 251 | 14.3745 | 125 | 0.09 | 100 |
IV.LMD.HHZ. | 2020-12-18T21:23:57.08 | 0.1 | undecidable | manual | P | 98 | 14.3745 | 125 | -0.42 | 89 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHE. | ML:0.6 | 0.00003307066 | 0.5504 | AML | other | m | 2020-12-18T21:24:04.29 |
IV.LMD.HHN. | ML:0.7 | 0.00004525206499999999 | 0.1536 | AML | other | m | 2020-12-18T21:24:01.46 |
IV.VISG.HHE. | ML:0.7 | 0.000048023085 | 0.0768 | AML | other | m | 2020-12-18T21:23:59.78 |
IV.VISG.HHN. | ML:0.7 | 0.000058984590000000004 | 0.0896 | AML | other | m | 2020-12-18T21:23:59.84 |
IV.RONT.HHE. | ML:1.1 | 0.00012281585000000001 | 0.1024 | AML | other | m | 2020-12-18T21:24:01.85 |
IV.RONT.HHN. | ML:1.1 | 0.00012571404999999999 | 0.1152 | AML | other | m | 2020-12-18T21:24:00.89 |
IV.SEI.HHE. | ML:1.1 | 0.0001142218 | 0.4096 | AML | other | m | 2020-12-18T21:24:03.07 |
IV.SEI.HHN. | ML:1.1 | 0.00013483435 | 0.4864 | AML | other | m | 2020-12-18T21:24:02.42 |
IV.BRIS.HNE. | ML:1.3 | 0.000132305665 | 0.704 | AML | other | m | 2020-12-18T21:24:02.64 |
IV.BRIS.HNN. | ML:1.6 | 0.00024404759999999996 | 0.704 | AML | other | m | 2020-12-18T21:24:00.22 |
IV.BRIS.HHE. | ML:1.0 | 0.000063123825 | 0.1792 | AML | other | m | 2020-12-18T21:24:03.43 |
IV.BRIS.HHN. | ML:1.2 | 0.00010299115 | 0.2048 | AML | other | m | 2020-12-18T21:24:03.56 |
IV.RUFI.EHE. | ML:1.0 | 0.00005128807499999999 | 54.6944 | AML | other | m | 2020-12-18T21:23:59.86 |
IV.RUFI.EHN. | ML:1.0 | 0.0000529124 | 3.6096 | AML | other | m | 2020-12-18T21:24:17.48 |
IV.ASQU.HHE. | ML:0.6 | 0.000016760669 | 0.1408 | AML | other | m | 2020-12-18T21:24:07.82 |
IV.ASQU.HHN. | ML:0.6 | 0.000012802966 | 0.1408 | AML | other | m | 2020-12-18T21:24:07.62 |