A magnitude ML 1.1 earthquake occured in region: 4 km W Palazzuolo sul Senio (FI), on
and geographic coordinates (lat, lon) 44.1210, 11.5000 at 11 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 | 10 | 4726 | 5880 |
Marradi | FI | 10 | 3139 | 9019 |
Castel del Rio | BO | 10 | 1246 | 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 1.1 | 2021-04-22 07:44:23 |
44.1213 | 11.5005 | 11 | 2021-04-22 07:54:41 |
Sala Sismica INGV-Roma | 89350351 |
Field | Value |
---|---|
Time (UTC) | 2021-04-22 07:44:23 ± 0.07 |
Latitude | 44.1213 ± 0.0045 |
Longitude | 11.5005 ± 0.0063 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89350351 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 512 |
Semi-minor axis of confidence ellipse (meter) | 369 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 318 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 510.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 77 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.08274 |
Epicentral distance of station farthest from the epicenter (degree) | 0.38491 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 89350351 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-22 07:54:41 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASQU.HHZ. | 2021-04-22T07:44:37.82 | 0.6 | undecidable | manual | S | 147 | 42.7239 | 50 | 0.13 | 47 |
IV.SFI.EHZ. | 2021-04-22T07:44:36.33 | 0.6 | undecidable | manual | S | 131 | 36.6411 | 50 | 0.28 | 46 |
IV.RUFI.EHZ. | 2021-04-22T07:44:34.28 | 0.6 | undecidable | manual | S | 179 | 31.4463 | 50 | -0.39 | 44 |
IV.RINC.HHZ. | 2021-04-22T07:44:33.57 | 0.6 | undecidable | manual | S | 162 | 27.3504 | 50 | -0.02 | 48 |
IV.BRIS.HHZ. | 2021-04-22T07:44:33.27 | 0.6 | undecidable | manual | S | 61 | 24.0537 | 50 | 0.57 | 45 |
IV.ASQU.HHZ. | 2021-04-22T07:44:31.79 | 1.0 | undecidable | manual | P | 147 | 42.7239 | 50 | -0.01 | 24 |
IV.RONT.HHZ. | 2021-04-22T07:44:30.28 | 0.3 | undecidable | manual | S | 201 | 15.1737 | 125 | 0.08 | 73 |
IV.SFI.EHZ. | 2021-04-22T07:44:30.94 | 1.0 | undecidable | manual | P | 131 | 36.6411 | 50 | 0.09 | 24 |
IV.FNVD.HHN. | 2021-04-22T07:44:30.00 | 1.0 | undecidable | manual | P | 280 | 30.5472 | 50 | 0.09 | 24 |
IV.BRIS.HHZ. | 2021-04-22T07:44:29.07 | 0.1 | positive | manual | P | 61 | 24.0537 | 50 | 0.15 | 98 |
IV.RUFI.EHZ. | 2021-04-22T07:44:29.90 | 0.6 | negative | manual | P | 179 | 31.4463 | 50 | -0.15 | 47 |
IV.RINC.HHZ. | 2021-04-22T07:44:29.37 | 0.6 | undecidable | manual | P | 162 | 27.3504 | 50 | -0.06 | 48 |
IV.SEI.HHZ. | 2021-04-22T07:44:29.91 | 0.6 | undecidable | manual | S | 237 | 13.5753 | 129 | 0.16 | 48 |
IV.MOCL.EHZ. | 2021-04-22T07:44:29.80 | 1.0 | negative | manual | P | 243 | 28.5492 | 50 | 0.19 | 24 |
IV.MTRZ.HNZ. | 2021-04-22T07:44:28.76 | 1.0 | undecidable | manual | P | 344 | 22.0668 | 50 | 0.15 | 25 |
IV.VISG.HHZ. | 2021-04-22T07:44:28.47 | 0.3 | undecidable | manual | S | 325 | 9.1797 | 140 | -0.19 | 73 |
IV.RONT.HHZ. | 2021-04-22T07:44:27.59 | 0.1 | positive | manual | P | 201 | 15.1737 | 125 | 0.11 | 97 |
IV.SEI.HHZ. | 2021-04-22T07:44:27.25 | 0.1 | positive | manual | P | 237 | 13.5753 | 129 | 0.03 | 100 |
IV.LMD.HHZ. | 2021-04-22T07:44:27.44 | 0.1 | positive | manual | P | 106 | 17.1717 | 122 | -0.37 | 94 |
IV.VISG.HHZ. | 2021-04-22T07:44:26.55 | 1.0 | undecidable | manual | P | 325 | 9.1797 | 140 | -0.04 | 25 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHE. | ML:1.6 | 0.000495 | 0.4 | AML | other | m | 2021-04-22T07:44:28.66 |
IV.VISG.HHN. | ML:1.6 | 0.0005700000000000001 | 0.44 | AML | other | m | 2021-04-22T07:44:28.67 |
IV.LMD.HHN. | ML:1.0 | 0.00008665 | 0.14 | AML | other | m | 2021-04-22T07:44:32.21 |
IV.LMD.HHE. | ML:1.1 | 0.00009870000000000001 | 1.72 | AML | other | m | 2021-04-22T07:44:33.02 |
IV.BRIS.HHN. | ML:1.3 | 0.00011649999999999999 | 0.7 | AML | other | m | 2021-04-22T07:44:33.78 |
IV.RINC.HHE. | ML:1.0 | 0.000051250000000000006 | 0.28 | AML | other | m | 2021-04-22T07:44:34.15 |
IV.MOCL.EHN. | ML:1.1 | 0.0000644 | 0.18 | AML | other | m | 2021-04-22T07:44:34.90 |
IV.MOCL.EHE. | ML:1.1 | 0.0000644 | 0.54 | AML | other | m | 2021-04-22T07:44:36.16 |
IV.ASQU.HHE. | ML:1.0 | 0.0000286 | 0.54 | AML | other | m | 2021-04-22T07:44:38.01 |
IV.ASQU.HHN. | ML:0.9 | 0.000025550000000000004 | 0.88 | AML | other | m | 2021-04-22T07:44:38.11 |
IV.BRIS.HHE. | ML:1.3 | 0.000125 | 0.46 | AML | other | m | 2021-04-22T07:44:38.28 |
IV.RINC.HHN. | ML:0.9 | 0.00004425 | 0.52 | AML | other | m | 2021-04-22T07:44:40.62 |