A magnitude ML 1.0 earthquake occured in region: 4 km N Firenzuola (FI), on
and geographic coordinates (lat, lon) 44.1550, 11.3780 at 6 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 |
---|---|---|---|---|
Firenzuola | FI | 4 | 4726 | 4726 |
Monghidoro | BO | 9 | 3749 | 8475 |
Castel del Rio | BO | 12 | 1246 | 9721 |
San Benedetto Val di Sambro | BO | 13 | 4315 | 14036 |
Loiano | BO | 14 | 4294 | 18330 |
Palazzuolo sul Senio | FI | 14 | 1154 | 19484 |
Monzuno | BO | 16 | 6328 | 25812 |
Castiglione dei Pepoli | BO | 18 | 5648 | 31460 |
Fontanelice | BO | 19 | 1943 | 33403 |
Monterenzio | BO | 19 | 6035 | 39438 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.0 | 2021-04-09 17:50:57 |
44.1547 | 11.3782 | 6 | 2021-07-12 16:55:13 |
Bollettino Sismico Italiano INGV | 90720121 |
Reviewed Rev100 |
ML 1.4 | 2021-04-09 17:50:57 |
44.1543 | 11.3795 | 7 | 2021-04-09 17:59:04 |
Sala Sismica INGV-Roma | 88946531 |
Field | Value |
---|---|
Time (UTC) | 2021-04-09 17:50:57 ± 0.21 |
Latitude | 44.1547 ± 0.0054 |
Longitude | 11.3782 ± 0.0088 |
Depth (km) | 6 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 90720121 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 687 |
Semi-minor axis of confidence ellipse (meter) | 203 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 310 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 690.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 90 |
Number of associated phases, regardless of their use for origin computation | 30 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34804 |
Number of stations at which the event was observed | 23 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.4 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 90720121 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-05 00:39:12 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 88946531 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-09 17:59:04 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PTRJ.HNZ. | 2021-04-09T17:52:53.38 | 3.0 | undecidable | manual | Sg | 9.15 | 0 | |||
IV.ESML.HHZ. | 2021-04-09T17:52:46.26 | 3.0 | positive | manual | P | 3.69 | 0 | |||
IV.LPEL.HHZ. | 2021-04-09T17:52:33.46 | 3.0 | undecidable | manual | Sg | 5.89 | 0 | |||
IV.MCI.EHZ. | 2021-04-09T17:52:30.28 | 3.0 | undecidable | manual | Sn | -3.53 | 0 | |||
IV.LRP.EHZ. | 2021-04-09T17:52:23.25 | 3.0 | undecidable | manual | Sn | -5.08 | 0 | |||
IV.PZUN.HHZ. | 2021-04-09T17:52:13.61 | 3.0 | negative | manual | P | 2.18 | 0 | |||
SI.BOSI.HHZ. | 2021-04-09T17:52:08.44 | 3.0 | undecidable | manual | Sg | 2.27 | 0 | |||
IT.RMVT.HGZ. | 2021-04-09T17:51:44.29 | 3.0 | negative | manual | P | 6.73 | 0 | |||
OX.SABO.HNZ. | 2021-04-09T17:51:39.64 | 3.0 | positive | manual | P | 0.9 | 0 | |||
IV.APEC.HHZ. | 2021-04-09T17:51:37.13 | 3.0 | undecidable | manual | S | -2.11 | 0 | |||
IV.EUCT.HNZ. | 2021-04-09T17:51:29.03 | 3.0 | undecidable | manual | P | -2.55 | 0 | |||
IV.MMO1.EHZ. | 2021-04-09T17:51:29.39 | 3.0 | undecidable | manual | P | -1.91 | 0 | |||
IV.SARZ.HHZ. | 2021-04-09T17:51:24.93 | 3.0 | undecidable | manual | P | -6.49 | 0 | |||
IV.CPGN.EHZ. | 2021-04-09T17:51:17.50 | 3.0 | undecidable | manual | P | 4.55 | 0 | |||
IV.BRIS.HHZ. | 2021-04-09T17:51:09.29 | 0.6 | undecidable | manual | S | 76 | 31.8459 | 101 | 0.11 | 48 |
IV.NDIM.HHZ. | 2021-04-09T17:51:07.51 | 3.0 | positive | manual | P | -6.21 | 0 | |||
IV.ZCCA.HNN. | 2021-04-09T17:51:06.25 | 0.3 | undecidable | manual | P | 304 | 38.628 | 99 | 0.5 | 66 |
IV.MOCL.EHZ. | 2021-04-09T17:51:06.00 | 0.6 | undecidable | manual | S | 224 | 22.8549 | 106 | -0.15 | 49 |
IV.RONT.HHZ. | 2021-04-09T17:51:05.08 | 0.6 | undecidable | manual | S | 166 | 18.3705 | 109 | 0.41 | 46 |
IV.MTRZ.HHN. | 2021-04-09T17:51:05.31 | 0.6 | undecidable | manual | S | 12 | 17.9709 | 110 | 0.8 | 40 |
IV.FNVD.HHZ. | 2021-04-09T17:51:05.52 | 0.6 | undecidable | manual | S | 274 | 20.3685 | 107 | 0.21 | 48 |
IV.BRIS.HHZ. | 2021-04-09T17:51:04.21 | 0.3 | undecidable | manual | P | 76 | 31.8459 | 101 | -0.2 | 71 |
IV.SEI.HHE. | 2021-04-09T17:51:02.91 | 0.6 | undecidable | manual | S | 188 | 11.2776 | 120 | 0.51 | 46 |
IV.MOCL.EHZ. | 2021-04-09T17:51:02.32 | 0.1 | undecidable | manual | P | 224 | 22.8549 | 106 | -0.34 | 93 |
IV.FNVD.HHZ. | 2021-04-09T17:51:01.86 | 0.1 | undecidable | manual | P | 274 | 20.3685 | 107 | -0.32 | 94 |
IV.RONT.HHZ. | 2021-04-09T17:51:01.98 | 0.3 | undecidable | manual | P | 166 | 18.3705 | 109 | 0.17 | 73 |
IV.MTRZ.HHN. | 2021-04-09T17:51:01.67 | 0.1 | undecidable | manual | P | 12 | 17.9709 | 110 | -0.05 | 100 |
IV.SEI.HHE. | 2021-04-09T17:51:00.41 | 0.3 | undecidable | manual | P | 188 | 11.2776 | 120 | -0.09 | 75 |
IV.VISG.HHZ. | 2021-04-09T17:51:00.65 | 0.6 | undecidable | manual | S | 50 | 5.8941 | 138 | -0.27 | 49 |
IV.VISG.HHZ. | 2021-04-09T17:50:59.34 | 0.1 | undecidable | manual | P | 50 | 5.8941 | 138 | -0.3 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.RONT.HHE. | ML:1.2 | 0.00014050000000000003 | 0.38 | AML | other | m | 2021-04-09T17:51:05.23 |
IV.RONT.HHN. | ML:1.3 | 0.0001690496 | 0.1792 | AML | other | m | 2021-04-09T17:51:05.46 |
IV.MOCL.EHN. | ML:0.3 | 0.000013731095000000001 | 0.1024 | AML | other | m | 2021-04-09T17:51:06.50 |
IV.MOCL.EHE. | ML:0.5 | 0.000021959628 | 1.6288 | AML | other | m | 2021-04-09T17:51:09.98 |
IV.BRIS.HHN. | ML:1.1 | 0.00005427833 | 0.2432 | AML | other | m | 2021-04-09T17:51:09.47 |
IV.BRIS.HHE. | ML:1.0 | 0.00004313261 | 0.6528 | AML | other | m | 2021-04-09T17:51:12.79 |