A magnitude ML 1.6 earthquake occured in region: 4 km SW Marradi (FI), on
and geographic coordinates (lat, lon) 44.0580, 11.5700 at 55 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
Palazzuolo sul Senio | FI | 6 | 1154 | 4293 |
Tredozio | FC | 14 | 1212 | 5505 |
San Godenzo | FI | 15 | 1167 | 6672 |
Vicchio | FI | 16 | 8044 | 14716 |
Firenzuola | FI | 17 | 4726 | 19442 |
Portico e San Benedetto | FC | 17 | 756 | 20198 |
Castel del Rio | BO | 18 | 1246 | 21444 |
Borgo San Lorenzo | FI | 18 | 18211 | 39655 |
Dicomano | FI | 19 | 5515 | 45170 |
Premilcuore | FC | 19 | 799 | 45969 |
Casola Valsenio | RA | 19 | 2617 | 48586 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2020-07-08 23:18:35 |
44.0577 | 11.5702 | 55 | 2020-11-19 12:36:55 |
Bollettino Sismico Italiano INGV | 81444991 |
Reviewed Rev100 |
ML 1.8 | 2020-07-08 23:18:35 |
44.0662 | 11.53 | 52 | 2020-07-08 23:28:30 |
Sala Sismica INGV-Roma | 80894011 |
Field | Value |
---|---|
Time (UTC) | 2020-07-08 23:18:35 ± 0.17 |
Latitude | 44.0577 ± 0.0090 |
Longitude | 11.5702 ± 0.0113 |
Depth (km) | 55 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 81444991 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 961 |
Semi-minor axis of confidence ellipse (meter) | 347 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 213 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 960.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 48 |
Number of associated phases, regardless of their use for origin computation | 27 |
Number of defining phases | 27 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.26 |
Epicentral distance of station closest to the epicenter (degree) | 0.10072 |
Epicentral distance of station farthest from the epicenter (degree) | 0.61783 |
Number of stations at which the event was observed | 17 |
Number of stations from which data was used for origin computation | 17 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 24 |
Type of magnitude | ML |
Reference to an origin | 81444991 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-07-29 09:04:01 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.4 |
Num. used stations | 56 |
Type of magnitude | ML |
Reference to an origin | 80894011 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-07-08 23:28:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASQU.HHZ. | 2020-07-08T23:18:52.27 | 0.6 | undecidable | manual | S | 149 | 33.8439 | 142 | 0.08 | 48 |
IV.MPPT.EHZ. | 2020-07-08T23:18:52.87 | 0.6 | undecidable | manual | S | 254 | 39.8268 | 136 | -0.18 | 47 |
IV.SFI.EHZ. | 2020-07-08T23:18:51.94 | 0.3 | undecidable | manual | S | 127 | 27.8499 | 147 | 0.49 | 66 |
IV.VISG.HHZ. | 2020-07-08T23:18:50.86 | 0.3 | undecidable | manual | S | 323 | 18.1707 | 158 | 0.38 | 69 |
IV.SEI.HHZ. | 2020-07-08T23:18:50.15 | 0.6 | undecidable | manual | S | 269 | 16.872 | 159 | -0.23 | 49 |
IV.RINC.HHZ. | 2020-07-08T23:18:50.78 | 0.6 | undecidable | manual | S | 171 | 19.2696 | 157 | 0.21 | 48 |
IV.RONT.HHZ. | 2020-07-08T23:18:50.01 | 0.6 | undecidable | manual | S | 237 | 13.0758 | 164 | -0.11 | 51 |
IV.RUFI.EHZ. | 2020-07-08T23:18:50.66 | 0.6 | undecidable | manual | S | 191 | 24.8529 | 151 | -0.45 | 46 |
IV.BRIS.HHZ. | 2020-07-08T23:18:50.91 | 0.3 | undecidable | manual | S | 40 | 24.2535 | 151 | -0.14 | 73 |
IV.LMD.HHZ. | 2020-07-08T23:18:49.65 | 0.6 | undecidable | manual | S | 79 | 11.1777 | 166 | -0.37 | 48 |
IV.CSNT.HHZ. | 2020-07-08T23:18:48.40 | 0.1 | undecidable | manual | P | 199 | 68.5758 | 117 | 0.07 | 92 |
GU.POPM.HHZ. | 2020-07-08T23:18:47.89 | 0.1 | undecidable | manual | P | 269 | 64.8906 | 119 | -0.02 | 91 |
IV.CRE.HHZ. | 2020-07-08T23:18:47.62 | 0.3 | undecidable | manual | P | 148 | 57.498 | 123 | 0.49 | 65 |
IV.CRMI.HHZ. | 2020-07-08T23:18:46.81 | 0.1 | undecidable | manual | P | 239 | 55.4001 | 124 | -0.1 | 92 |
IV.MTRZ.HNN. | 2020-07-08T23:18:45.24 | 0.3 | undecidable | manual | P | 338 | 30.5472 | 145 | 0.55 | 66 |
IV.ASQU.HHZ. | 2020-07-08T23:18:45.14 | 0.1 | undecidable | manual | P | 149 | 33.8439 | 142 | 0.2 | 95 |
IV.IMOL.HNZ. | 2020-07-08T23:18:45.26 | 0.3 | undecidable | manual | P | 22 | 36.1416 | 139 | 0.13 | 72 |
IV.MPPT.EHZ. | 2020-07-08T23:18:45.40 | 0.3 | positive | manual | P | 254 | 39.8268 | 136 | -0.04 | 72 |
IV.FNVD.HHZ. | 2020-07-08T23:18:45.74 | 0.3 | undecidable | manual | P | 289 | 37.629 | 138 | 0.5 | 66 |
IV.RUFI.EHZ. | 2020-07-08T23:18:44.23 | 0.1 | positive | manual | P | 191 | 24.8529 | 151 | -0.09 | 97 |
IV.SFI.EHZ. | 2020-07-08T23:18:44.30 | 0.1 | negative | manual | P | 127 | 27.8499 | 147 | -0.21 | 94 |
IV.RINC.HHZ. | 2020-07-08T23:18:44.18 | 0.1 | undecidable | manual | P | 171 | 19.2696 | 157 | 0.18 | 97 |
IV.RONT.HHZ. | 2020-07-08T23:18:43.64 | 0.1 | undecidable | manual | P | 237 | 13.0758 | 164 | -0.1 | 99 |
IV.BRIS.HHZ. | 2020-07-08T23:18:43.87 | 0.1 | positive | manual | P | 40 | 24.2535 | 151 | -0.41 | 91 |
IV.VISG.HHZ. | 2020-07-08T23:18:43.92 | 0.1 | undecidable | manual | P | 323 | 18.1707 | 158 | -0.03 | 100 |
IV.LMD.HHZ. | 2020-07-08T23:18:43.09 | 0.1 | undecidable | manual | P | 79 | 11.1777 | 166 | -0.59 | 88 |
IV.SEI.HHZ. | 2020-07-08T23:18:43.96 | 0.1 | undecidable | manual | P | 269 | 16.872 | 159 | 0.07 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.POPM.HHN. | ML:2.1 | 0.00016840235000000002 | 0.1792 | AML | other | m | 2020-07-08T23:18:57.61 |
IV.RINC.HHN. | ML:1.5 | 0.00006887907000000001 | 0.6016 | AML | other | m | 2020-07-08T23:18:51.40 |
IV.VISG.HHN. | ML:1.6 | 0.00009548053000000001 | 0.32 | AML | other | m | 2020-07-08T23:18:51.60 |
IV.RINC.HHE. | ML:1.6 | 0.00007918909 | 0.64 | AML | other | m | 2020-07-08T23:18:51.58 |
IV.ASQU.HHE. | ML:2.0 | 0.00020950000000000002 | 0.58 | AML | other | m | 2020-07-08T23:18:52.96 |
IV.ASQU.HHN. | ML:2.0 | 0.00017649999999999998 | 0.24 | AML | other | m | 2020-07-08T23:18:52.68 |
IV.SFI.EHN. | ML:1.6 | 0.00007895 | 1.02 | AML | other | m | 2020-07-08T23:18:52.41 |
IV.MPPT.EHN. | ML:1.4 | 0.00003945 | 1.58 | AML | other | m | 2020-07-08T23:18:53.13 |
IV.MPPT.EHE. | ML:1.4 | 0.000038 | 0.56 | AML | other | m | 2020-07-08T23:18:53.29 |
IV.SFI.EHE. | ML:1.6 | 0.00008035 | 0.86 | AML | other | m | 2020-07-08T23:18:53.93 |
IV.CRMI.HHE. | ML:1.0 | 0.000013105865 | 0.256 | AML | other | m | 2020-07-08T23:18:55.48 |
IV.CRMI.HHN. | ML:1.0 | 0.000016451065 | 0.3584 | AML | other | m | 2020-07-08T23:18:55.83 |
IV.CRE.HHN. | ML:1.9 | 0.00011075 | 0.4 | AML | other | m | 2020-07-08T23:18:57.65 |
GU.POPM.HHE. | ML:1.9 | 0.0001028 | 0.18 | AML | other | m | 2020-07-08T23:18:57.48 |
IV.CRE.HHE. | ML:1.8 | 0.00008505000000000001 | 0.36 | AML | other | m | 2020-07-08T23:18:57.32 |
IV.VISG.HHE. | ML:1.7 | 0.00011738754 | 0.3968 | AML | other | m | 2020-07-08T23:18:51.11 |
IV.RUFI.EHE. | ML:1.1 | 0.000027437198 | 0.4352 | AML | other | m | 2020-07-08T23:18:52.19 |
IV.RUFI.EHN. | ML:1.3 | 0.00003946993 | 1.5392 | AML | other | m | 2020-07-08T23:18:52.18 |
IV.LMD.HHE. | ML:1.5 | 0.00008062249 | 0.192 | AML | other | m | 2020-07-08T23:18:51.56 |
IV.LMD.HHN. | ML:1.4 | 0.000056472145 | 1.7056 | AML | other | m | 2020-07-08T23:18:51.00 |
IV.RONT.HHE. | ML:1.5 | 0.00007463424000000001 | 0.256 | AML | other | m | 2020-07-08T23:18:56.08 |
IV.RONT.HHN. | ML:1.5 | 0.00006829009999999999 | 0.2304 | AML | other | m | 2020-07-08T23:18:56.46 |
IV.BRIS.HHE. | ML:2.1 | 0.0002809325 | 0.4096 | AML | other | m | 2020-07-08T23:18:51.47 |
IV.BRIS.HHN. | ML:2.0 | 0.00020099965 | 0.2944 | AML | other | m | 2020-07-08T23:18:51.44 |