A magnitude ML 1.3 earthquake occured in region: 5 km SW Castel del Rio (BO), on
and geographic coordinates (lat, lon) 44.1760, 11.4850 at 9 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 | 5 | 1246 | 1246 |
Palazzuolo sul Senio | FI | 9 | 1154 | 2400 |
Firenzuola | FI | 11 | 4726 | 7126 |
Fontanelice | BO | 11 | 1943 | 9069 |
Casola Valsenio | RA | 12 | 2617 | 11686 |
Borgo Tossignano | BO | 14 | 3288 | 14974 |
Monghidoro | BO | 14 | 3749 | 18723 |
Marradi | FI | 15 | 3139 | 21862 |
Loiano | BO | 17 | 4294 | 26156 |
Casalfiumanese | BO | 17 | 3438 | 29594 |
Monterenzio | BO | 18 | 6035 | 35629 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2021-04-08 01:50:54 |
44.1762 | 11.485 | 9 | 2021-04-08 02:00:03 |
Sala Sismica INGV-Roma | 88907401 |
Field | Value |
---|---|
Time (UTC) | 2021-04-08 01:50:54 ± 0.11 |
Latitude | 44.1762 ± 0.0054 |
Longitude | 11.4850 ± 0.0075 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88907401 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 618 |
Semi-minor axis of confidence ellipse (meter) | 497 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 325 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 620.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 94 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.24 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.65021 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 88907401 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-08 02:00:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PARC.HHZ. | 2021-04-08T01:51:12.04 | 3.0 | undecidable | manual | S | 0 | ||||
IV.ASQU.HHZ. | 2021-04-08T01:51:10.14 | 0.6 | undecidable | manual | S | 150 | 48.618 | 50 | -0.53 | 44 |
IV.SFI.EHZ. | 2021-04-08T01:51:09.04 | 0.3 | undecidable | manual | S | 136 | 41.7249 | 50 | 0.21 | 72 |
IV.PARC.HHZ. | 2021-04-08T01:51:08.12 | 3.0 | undecidable | manual | P | 0 | ||||
IV.CRE.HHZ. | 2021-04-08T01:51:07.65 | 0.1 | positive | manual | P | 149 | 72.1722 | 50 | 0.1 | 93 |
IV.MOCL.EHZ. | 2021-04-08T01:51:05.76 | 0.6 | undecidable | manual | S | 232 | 30.8469 | 106 | -0.03 | 51 |
IV.BRIS.HHZ. | 2021-04-08T01:51:03.43 | 0.3 | undecidable | manual | S | 76 | 23.0547 | 110 | 0.21 | 74 |
IV.RONT.HHZ. | 2021-04-08T01:51:03.00 | 1.0 | undecidable | manual | S | 192 | 20.6682 | 113 | 0.54 | 23 |
IV.ASQU.HHZ. | 2021-04-08T01:51:03.68 | 1.0 | undecidable | manual | P | 150 | 48.618 | 50 | -0.23 | 24 |
IV.SFI.EHZ. | 2021-04-08T01:51:02.95 | 1.0 | positive | manual | P | 136 | 41.7249 | 50 | 0.1 | 25 |
IV.LMD.HHZ. | 2021-04-08T01:51:02.52 | 0.6 | undecidable | manual | S | 122 | 20.868 | 112 | 0.01 | 52 |
IV.MTRZ.HHZ. | 2021-04-08T01:51:01.75 | 0.6 | undecidable | manual | S | 342 | 15.873 | 118 | 0.79 | 42 |
IV.SEI.HHZ. | 2021-04-08T01:51:01.71 | 0.6 | undecidable | manual | S | 217 | 16.872 | 117 | 0.45 | 48 |
IV.MOCL.EHZ. | 2021-04-08T01:51:00.86 | 0.6 | positive | manual | P | 232 | 30.8469 | 106 | -0.24 | 49 |
IV.BRIS.HHZ. | 2021-04-08T01:50:59.30 | 0.6 | undecidable | manual | P | 76 | 23.0547 | 110 | -0.31 | 49 |
IV.RONT.HHZ. | 2021-04-08T01:50:59.32 | 0.6 | negative | manual | P | 192 | 20.6682 | 113 | 0.14 | 51 |
IV.SEI.HHZ. | 2021-04-08T01:50:58.58 | 0.3 | positive | manual | P | 217 | 16.872 | 117 | 0.1 | 77 |
IV.LMD.HHZ. | 2021-04-08T01:50:58.77 | 1.0 | negative | manual | P | 122 | 20.868 | 112 | -0.43 | 24 |
IV.MTRZ.HHZ. | 2021-04-08T01:50:58.19 | 0.6 | negative | manual | P | 342 | 15.873 | 118 | -0.12 | 51 |
IV.VISG.HHZ. | 2021-04-08T01:50:57.78 | 0.3 | undecidable | manual | S | 289 | 4.2957 | 154 | -0.24 | 76 |
IV.VISG.HHZ. | 2021-04-08T01:50:56.29 | 0.1 | undecidable | manual | P | 289 | 4.2957 | 154 | -0.32 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHE. | ML:2.0 | 0.00188 | 1.62 | AML | other | m | 2021-04-08T01:50:57.84 |
IV.VISG.HHN. | ML:2.2 | 0.0033099999999999996 | 0.1 | AML | other | m | 2021-04-08T01:50:57.91 |
IV.MTRZ.HHE. | ML:1.4 | 0.0002575 | 0.94 | AML | other | m | 2021-04-08T01:51:02.13 |
IV.SEI.HHE. | ML:1.3 | 0.00018099999999999998 | 0.34 | AML | other | m | 2021-04-08T01:51:02.66 |
IV.MTRZ.HHN. | ML:1.6 | 0.0003575 | 1.6 | AML | other | m | 2021-04-08T01:51:02.88 |
IV.LMD.HHN. | ML:0.7 | 0.000041800000000000006 | 0.58 | AML | other | m | 2021-04-08T01:51:03.36 |
IV.SEI.HHN. | ML:1.5 | 0.00029700000000000006 | 0.6 | AML | other | m | 2021-04-08T01:51:03.52 |
IV.RONT.HHN. | ML:1.4 | 0.00017749999999999998 | 0.32 | AML | other | m | 2021-04-08T01:51:04.48 |
IV.RONT.HHE. | ML:1.3 | 0.00014700000000000002 | 0.44 | AML | other | m | 2021-04-08T01:51:04.52 |
IV.LMD.HHE. | ML:0.7 | 0.000036150000000000005 | 0.48 | AML | other | m | 2021-04-08T01:51:06.80 |
IV.BRIS.HHE. | ML:1.2 | 0.0001152 | 0.6 | AML | other | m | 2021-04-08T01:51:07.15 |
IV.BRIS.HHN. | ML:1.1 | 0.00008465 | 1.22 | AML | other | m | 2021-04-08T01:51:07.06 |
IV.ASQU.HHE. | ML:1.2 | 0.0000408 | 0.28 | AML | other | m | 2021-04-08T01:51:10.33 |
IV.ASQU.HHN. | ML:1.3 | 0.000062 | 0.18 | AML | other | m | 2021-04-08T01:51:10.44 |
IV.CRE.HHN. | ML:1.4 | 0.0000425 | 0.62 | AML | other | m | 2021-04-08T01:51:11.53 |
IV.CRE.HHE. | ML:1.3 | 0.0000366 | 0.46 | AML | other | m | 2021-04-08T01:51:11.40 |