A magnitude ML 1.6 earthquake occured in region: 6 km S Castel del Rio (BO), on
and geographic coordinates (lat, lon) 44.1620, 11.4910 at 8 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 |
---|---|---|---|---|
Castel del Rio | BO | 6 | 1246 | 1246 |
Palazzuolo sul Senio | FI | 7 | 1154 | 2400 |
Firenzuola | FI | 10 | 4726 | 7126 |
Fontanelice | BO | 12 | 1943 | 9069 |
Casola Valsenio | RA | 13 | 2617 | 11686 |
Marradi | FI | 14 | 3139 | 14825 |
Borgo Tossignano | BO | 15 | 3288 | 18113 |
Monghidoro | BO | 15 | 3749 | 21862 |
Loiano | BO | 18 | 4294 | 26156 |
Casalfiumanese | BO | 18 | 3438 | 29594 |
Monterenzio | BO | 19 | 6035 | 35629 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.6 | 2024-04-02 02:50:39 |
44.1623 | 11.4907 | 8 | 2024-04-02 03:06:51 |
Sala Sismica INGV-Roma | 126390941 |
Field | Value |
---|---|
Time (UTC) | 2024-04-02 02:50:39 ± 0.17 |
Latitude | 44.1623 ± 0.0045 |
Longitude | 11.4907 ± 0.0088 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 126390941 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 670 |
Semi-minor axis of confidence ellipse (meter) | 353 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 67 |
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) | 136 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.04856 |
Epicentral distance of station farthest from the epicenter (degree) | 0.36333 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.4 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 126390941 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2024-04-02 03:06:51 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VMGN.HHZ. | 2024-04-02T02:50:48.08 | 0.6 | undecidable | manual | S | 172 | 23.2545 | 109 | 0.21 | 48 |
IV.SFI.EHZ. | 2024-04-02T02:50:46.88 | 1.0 | undecidable | manual | P | 135 | 40.3263 | 50 | -0.46 | 22 |
IV.LMD.HHZ. | 2024-04-02T02:50:46.80 | 0.6 | undecidable | manual | S | 119 | 19.6692 | 112 | 0.11 | 49 |
IV.SEI.HHZ. | 2024-04-02T02:50:45.75 | 0.6 | undecidable | manual | S | 221 | 15.9729 | 117 | 0.24 | 48 |
IV.MTRZ.HHN. | 2024-04-02T02:50:45.96 | 0.6 | undecidable | manual | S | 343 | 17.4714 | 115 | -0.03 | 50 |
IV.VMGN.HHZ. | 2024-04-02T02:50:44.11 | 1.0 | negative | manual | P | 172 | 23.2545 | 109 | -0.15 | 24 |
IV.LMD.HHZ. | 2024-04-02T02:50:43.25 | 1.0 | undecidable | manual | P | 119 | 19.6692 | 112 | -0.32 | 24 |
IV.MTRZ.HHN. | 2024-04-02T02:50:43.52 | 0.1 | undecidable | manual | P | 343 | 17.4714 | 115 | 0.35 | 94 |
IV.SEI.HHZ. | 2024-04-02T02:50:42.80 | 0.1 | positive | manual | P | 221 | 15.9729 | 117 | -0.09 | 100 |
IV.VISG.HHZ. | 2024-04-02T02:50:42.46 | 0.6 | undecidable | manual | S | 303 | 5.3946 | 146 | -0.2 | 50 |
IV.VISG.HHZ. | 2024-04-02T02:50:41.08 | 0.1 | negative | manual | P | 303 | 5.3946 | 146 | -0.17 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHN. | ML:1.9 | 0.0014399999999999999 | 0.1 | AML | other | m | 2024-04-02T02:50:42.60 |
IV.VISG.HHE. | ML:1.5 | 0.000558 | 0.08 | AML | other | m | 2024-04-02T02:50:42.67 |
IV.SEI.HHN. | ML:1.9 | 0.0007880000000000001 | 0.24 | AML | other | m | 2024-04-02T02:50:46.06 |
IV.SEI.HHE. | ML:1.4 | 0.000215 | 0.68 | AML | other | m | 2024-04-02T02:50:47.29 |