Earthquake with magnitude of ML 1.2 on date 25-08-2020 and time 01:27:04 (Italy) in region 5 km SE Castel d'Aiano (BO)

A magnitude ML 1.2 earthquake occured in region: 5 km SE Castel d'Aiano (BO), on

  • 24-08-2020 23:27:04 (UTC)
  • 25-08-2020 01:27:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2390, 11.0330 at 10 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castel d'Aiano BO 5 1906 1906
Montese MO 8 3353 5259
Vergato BO 8 7639 12898
Castel di Casio BO 8 3448 16346
Gaggio Montano BO 9 4878 21224
Camugnano BO 9 1885 23109
Grizzana Morandi BO 10 3916 27025
Alto Reno Terme BO 10 6960 33985
Zocca MO 12 4719 38704
Lizzano in Belvedere BO 14 2212 40916
Castiglione dei Pepoli BO 14 5648 46564
Sambuca Pistoiese PT 15 1626 48190
San Benedetto Val di Sambro BO 16 4315 52505
Marzabotto BO 18 6779 59284
Fanano MO 19 2989 62273
Pavullo nel Frignano MO 19 17383 79656
Monzuno BO 20 6328 85984

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Pistoia (90315 inhabitants)
38 Km SW of Bologna (386663 inhabitants)
40 Km N of Prato (191150 inhabitants)
46 Km S of Modena (184973 inhabitants)
55 Km N of Scandicci (50609 inhabitants)
55 Km NW of Firenze (382808 inhabitants)
56 Km W of Imola (69797 inhabitants)
60 Km SE of Reggio nell'Emilia (171345 inhabitants)
61 Km NE of Lucca (89046 inhabitants)
62 Km S of Carpi (70699 inhabitants)
68 Km W of Faenza (58541 inhabitants)
75 Km E of Massa (69479 inhabitants)
75 Km NE of Viareggio (62467 inhabitants)
77 Km E of Carrara (63133 inhabitants)
77 Km NE of Pisa (89158 inhabitants)
80 Km W of Forlì (117913 inhabitants)
81 Km SW of Ferrara (133155 inhabitants)
84 Km SE of Parma (192836 inhabitants)
95 Km W of Ravenna (159116 inhabitants)
96 Km NE of Livorno (159219 inhabitants)
97 Km W of Cesena (96758 inhabitants)
97 Km E of La Spezia (93959 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.2 2020-08-24
23:27:04
44.2387 11.0332 10 2020-11-19
12:37:06
Bollettino Sismico Italiano INGV 84607671
Reviewed
Rev100
ML 1.2 2020-08-24
23:27:04
44.2345 11.0232 10 2020-08-24
23:35:49
Sala Sismica INGV-Roma 82301201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-24 23:27:04 ± 0.07
Latitude 44.2387 ± 0.0054
Longitude 11.0332 ± 0.0063
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84607671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 626
Semi-minor axis of confidence ellipse (meter) 404
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.09533
Epicentral distance of station farthest from the epicenter (degree) 0.37682
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 82301201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-24 23:35:49

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 84607671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-10 14:39:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BDI.HHZ. 2020-08-24T23:27:17.88 0.6 undecidable manual S 241 39.9267 50 0.07 48
IV.SEI.HHZ. 2020-08-24T23:27:16.56 0.6 undecidable manual S 128 33.0447 50 0.59 43
IV.VISG.HHZ. 2020-08-24T23:27:15.80 0.6 undecidable manual S 100 32.3454 50 0 49
GU.POPM.HHZ. 2020-08-24T23:27:15.41 0.6 undecidable manual S 226 30.747 50 0.04 49
IV.MPPT.EHZ. 2020-08-24T23:27:15.83 0.6 undecidable manual S 172 31.5462 50 0.26 47
IV.MOCL.EHZ. 2020-08-24T23:27:14.76 0.6 undecidable manual S 156 28.4493 50 0 49
IV.BDI.HHZ. 2020-08-24T23:27:12.05 0.1 undecidable manual P 241 39.9267 50 -0.14 94
IV.RONT.HHN. 2020-08-24T23:27:12.50 0.3 undecidable manual P 130 41.8248 50 0.01 72
GU.GSCL.HHN. 2020-08-24T23:27:11.98 0.3 undecidable manual P 290 37.4292 50 0.17 71
IV.SEI.HHZ. 2020-08-24T23:27:10.81 0.3 undecidable manual P 128 33.0447 50 -0.31 69
IV.VISG.HHZ. 2020-08-24T23:27:10.87 0.3 undecidable manual P 100 32.3454 50 -0.16 71
IV.MOCL.EHZ. 2020-08-24T23:27:10.38 0.1 positive manual P 156 28.4493 50 -0.04 98
GU.POPM.HHZ. 2020-08-24T23:27:10.72 0.1 positive manual P 226 30.747 50 -0.05 97
IV.ZCCA.HHZ. 2020-08-24T23:27:10.94 0.6 undecidable manual S 340 13.2756 128 0.65 43
IV.MPPT.EHZ. 2020-08-24T23:27:10.86 0.1 undecidable manual P 172 31.5462 50 -0.03 98
IV.FNVD.HHZ. 2020-08-24T23:27:09.79 0.6 undecidable manual S 138 10.5783 134 0.19 49
IV.ZCCA.HHZ. 2020-08-24T23:27:07.58 0.1 positive manual P 340 13.2756 128 -0.26 96
IV.FNVD.HHZ. 2020-08-24T23:27:07.34 0.1 positive manual P 138 10.5783 134 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FNVD.HHE. ML:1.1 0.0001555 0.1 AML other m 2020-08-24T23:27:09.88
IV.FNVD.HHN. ML:1.2 0.000201 0.2 AML other m 2020-08-24T23:27:09.89
IV.ZCCA.HHE. ML:1.1 0.00012065 0.54 AML other m 2020-08-24T23:27:11.16
IV.ZCCA.HHN. ML:1.0 0.000096 0.46 AML other m 2020-08-24T23:27:14.51
IV.MOCL.EHE. ML:1.4 0.000129 0.6 AML other m 2020-08-24T23:27:15.58
IV.MOCL.EHN. ML:1.2 0.00008415 0.52 AML other m 2020-08-24T23:27:15.38
GU.POPM.HHN. ML:1.8 0.0002745 0.14 AML other m 2020-08-24T23:27:16.18
GU.POPM.HHE. ML:1.5 0.00014950000000000003 0.36 AML other m 2020-08-24T23:27:16.27
IV.MPPT.EHN. ML:1.0 0.0000451 0.52 AML other m 2020-08-24T23:27:16.27
IV.SEI.HHN. ML:1.2 0.00006520000000000001 0.34 AML other m 2020-08-24T23:27:16.75
IV.MPPT.EHE. ML:0.9 0.00003515 0.26 AML other m 2020-08-24T23:27:16.58
IV.SEI.HHE. ML:1.1 0.000048549999999999994 0.68 AML other m 2020-08-24T23:27:17.67
IV.BDI.HHE. ML:1.0 0.0000362 0.32 AML other m 2020-08-24T23:27:18.19
IV.BDI.HHN. ML:1.2 0.00005395 0.68 AML other m 2020-08-24T23:27:18.40
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download