A magnitude ML 0.9 earthquake occured in region: 4 km E Firenzuola (FI), on
and geographic coordinates (lat, lon) 44.1090, 11.4280 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 |
---|---|---|---|---|
Firenzuola | FI | 4 | 4726 | 4726 |
Palazzuolo sul Senio | FI | 10 | 1154 | 5880 |
Castel del Rio | BO | 13 | 1246 | 7126 |
Monghidoro | BO | 15 | 3749 | 10875 |
Marradi | FI | 15 | 3139 | 14014 |
Borgo San Lorenzo | FI | 17 | 18211 | 32225 |
Scarperia e San Piero | FI | 18 | 12217 | 44442 |
Barberino di Mugello | FI | 19 | 10836 | 55278 |
Fontanelice | BO | 20 | 1943 | 57221 |
San Benedetto Val di Sambro | BO | 20 | 4315 | 61536 |
Vicchio | FI | 20 | 8044 | 69580 |
Loiano | BO | 20 | 4294 | 73874 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-04-21 08:57:03 |
44.1092 | 11.4282 | 10 | 2023-04-21 09:12:55 |
Sala Sismica INGV-Roma | 116567101 |
Field | Value |
---|---|
Time (UTC) | 2023-04-21 08:57:03 ± 0.14 |
Latitude | 44.1092 ± 0.0063 |
Longitude | 11.4282 ± 0.0113 |
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 | 116567101 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 675 |
Semi-minor axis of confidence ellipse (meter) | 667 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 97 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 670.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 96 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.37 |
Epicentral distance of station closest to the epicenter (degree) | 0.07374 |
Epicentral distance of station farthest from the epicenter (degree) | 0.22663 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 116567101 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-21 09:12:55 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FNVD.HHZ. | 2023-04-21T08:57:13.56 | 0.1 | undecidable | manual | S | 285 | 25.1526 | 50 | 0.41 | 91 |
IV.LMD.HHZ. | 2023-04-21T08:57:12.75 | 0.3 | undecidable | manual | S | 99 | 22.5552 | 114 | 0.42 | 69 |
IV.BOSL.HHZ. | 2023-04-21T08:57:11.84 | 0.3 | undecidable | manual | S | 192 | 20.2686 | 117 | 0.22 | 72 |
IV.VMGN.HHZ. | 2023-04-21T08:57:11.49 | 0.1 | undecidable | manual | S | 154 | 19.0698 | 118 | 0.23 | 96 |
IV.LMD.HHZ. | 2023-04-21T08:57:08.59 | 0.1 | undecidable | manual | P | 99 | 22.5552 | 114 | -0.12 | 97 |
IV.SEI.HHZ. | 2023-04-21T08:57:08.62 | 0.1 | undecidable | manual | S | 222 | 8.1807 | 141 | 0.32 | 96 |
IV.FNVD.HHZ. | 2023-04-21T08:57:08.90 | 0.1 | undecidable | manual | P | 285 | 25.1526 | 50 | -0.28 | 94 |
IV.VISG.HHZ. | 2023-04-21T08:57:08.55 | 0.1 | undecidable | manual | S | 3 | 8.88 | 139 | 0.11 | 100 |
IV.BOSL.HHZ. | 2023-04-21T08:57:08.27 | 0.1 | undecidable | manual | P | 192 | 20.2686 | 117 | -0.03 | 100 |
IV.MTRZ.HNZ. | 2023-04-21T08:57:08.94 | 0.1 | undecidable | manual | P | 359 | 22.5552 | 114 | 0.21 | 96 |
IV.VMGN.HHZ. | 2023-04-21T08:57:07.63 | 0.1 | undecidable | manual | P | 154 | 19.0698 | 118 | -0.46 | 91 |
IV.VISG.HHZ. | 2023-04-21T08:57:06.20 | 0.1 | undecidable | manual | P | 3 | 8.88 | 139 | -0.26 | 97 |
IV.SEI.HHZ. | 2023-04-21T08:57:05.71 | 0.1 | undecidable | manual | P | 222 | 8.1807 | 141 | -0.67 | 86 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LMD.HHN. | ML:0.8 | 0.00003985 | 0.22 | AML | other | m | 2023-04-21T08:57:13.12 |
IV.LMD.HHE. | ML:1.0 | 0.000060150000000000005 | 0.24 | AML | other | m | 2023-04-21T08:57:14.33 |