A magnitude ML 1.2 earthquake occured in region: 4 km W Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.1250, 11.4970 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 | 4 | 1154 | 1154 |
Firenzuola | FI | 9 | 4726 | 5880 |
Castel del Rio | BO | 10 | 1246 | 7126 |
Marradi | FI | 11 | 3139 | 10265 |
Casola Valsenio | RA | 15 | 2617 | 12882 |
Fontanelice | BO | 16 | 1943 | 14825 |
Monghidoro | BO | 18 | 3749 | 18574 |
Borgo Tossignano | BO | 19 | 3288 | 21862 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-04-22 05:42:31 |
44.1247 | 11.497 | 10 | 2021-04-22 05:51:14 |
Sala Sismica INGV-Roma | 89348841 |
Field | Value |
---|---|
Time (UTC) | 2021-04-22 05:42:31 ± 0.13 |
Latitude | 44.1247 ± 0.0072 |
Longitude | 11.4970 ± 0.0075 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89348841 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 743 |
Semi-minor axis of confidence ellipse (meter) | 461 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 328 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 740.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 98 |
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) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.38941 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 89348841 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-22 05:51:14 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PESA.HHZ. | 2021-04-22T05:42:49.84 | 3.0 | positive | manual | P | -1.11 | 0 | |||
IV.SFI.EHZ. | 2021-04-22T05:42:44.22 | 0.6 | undecidable | manual | S | 131 | 37.0296 | 50 | -0.03 | 48 |
IV.BRIS.HHZ. | 2021-04-22T05:42:41.44 | 0.6 | undecidable | manual | S | 63 | 24.1536 | 112 | 0.82 | 39 |
IV.SFI.EHZ. | 2021-04-22T05:42:39.12 | 0.6 | positive | manual | P | 131 | 37.0296 | 50 | 0.22 | 46 |
IV.ASQU.HHZ. | 2021-04-22T05:42:39.63 | 1.0 | negative | manual | P | 147 | 43.2234 | 50 | -0.22 | 23 |
IV.LMD.HHZ. | 2021-04-22T05:42:38.00 | 0.6 | undecidable | manual | S | 107 | 17.5713 | 119 | -0.54 | 44 |
IV.RONT.HHZ. | 2021-04-22T05:42:38.07 | 0.6 | undecidable | manual | S | 199 | 15.3735 | 122 | 0.16 | 49 |
IV.SEI.HHZ. | 2021-04-22T05:42:37.55 | 0.6 | undecidable | manual | S | 235 | 13.4754 | 126 | 0.19 | 49 |
IV.RUFI.EHZ. | 2021-04-22T05:42:37.60 | 1.0 | undecidable | manual | P | 178 | 31.8459 | 50 | -0.49 | 22 |
IV.MOCL.EHZ. | 2021-04-22T05:42:37.50 | 0.6 | negative | manual | P | 242 | 28.4493 | 50 | -0.08 | 49 |
IV.BRIS.HHZ. | 2021-04-22T05:42:36.90 | 0.1 | negative | manual | P | 63 | 24.1536 | 112 | 0.1 | 97 |
IV.LMD.HHZ. | 2021-04-22T05:42:35.32 | 0.3 | positive | manual | P | 107 | 17.5713 | 119 | -0.28 | 71 |
IV.VISG.HHZ. | 2021-04-22T05:42:35.61 | 0.6 | undecidable | manual | S | 325 | 8.6802 | 138 | -0.5 | 46 |
IV.RONT.HHZ. | 2021-04-22T05:42:35.37 | 0.1 | positive | manual | P | 199 | 15.3735 | 122 | 0.13 | 98 |
IV.VISG.HHZ. | 2021-04-22T05:42:34.20 | 0.6 | undecidable | manual | P | 325 | 8.6802 | 138 | 0 | 51 |
IV.SEI.HHZ. | 2021-04-22T05:42:34.98 | 0.1 | undecidable | manual | P | 235 | 13.4754 | 126 | 0.06 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SEI.HHE. | ML:1.7 | 0.00048650000000000006 | 0.22 | AML | other | m | 2021-04-22T05:42:37.80 |
IV.SEI.HHN. | ML:2.0 | 0.0011799999999999998 | 0.2 | AML | other | m | 2021-04-22T05:42:37.82 |
IV.RONT.HHE. | ML:1.6 | 0.0004205 | 0.32 | AML | other | m | 2021-04-22T05:42:38.18 |
IV.RONT.HHN. | ML:1.6 | 0.0004195 | 0.22 | AML | other | m | 2021-04-22T05:42:38.76 |
IV.LMD.HHN. | ML:1.0 | 0.00008549999999999999 | 1.44 | AML | other | m | 2021-04-22T05:42:39.24 |
IV.LMD.HHE. | ML:1.0 | 0.00007869999999999999 | 0.4 | AML | other | m | 2021-04-22T05:42:40.13 |
IV.MOCL.EHN. | ML:1.0 | 0.00004765 | 1.02 | AML | other | m | 2021-04-22T05:42:42.57 |
IV.MOCL.EHE. | ML:0.9 | 0.000043450000000000006 | 1.6 | AML | other | m | 2021-04-22T05:42:43.14 |
IV.BRIS.HHN. | ML:1.2 | 0.00008804999999999999 | 1.18 | AML | other | m | 2021-04-22T05:42:44.19 |
IV.BRIS.HHE. | ML:1.1 | 0.000082 | 0.94 | AML | other | m | 2021-04-22T05:42:45.28 |