Earthquake with magnitude of ML 1.5 on date 27-10-2020 and time 03:32:26 (Italy) in region 2 km E Castiglione dei Pepoli (BO)

A magnitude ML 1.5 earthquake occured in region: 2 km E Castiglione dei Pepoli (BO), on

  • 27-10-2020 02:32:26 (UTC)
  • 27-10-2020 03:32:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.14, 11.18 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castiglione dei Pepoli BO 3 5648 5648
Camugnano BO 9 1885 7533
Vernio PO 9 6060 13593
San Benedetto Val di Sambro BO 10 4315 17908
Castel di Casio BO 12 3448 21356
Cantagallo PO 13 3105 24461
Grizzana Morandi BO 14 3916 28377
Monghidoro BO 14 3749 32126
Sambuca Pistoiese PT 15 1626 33752
Barberino di Mugello FI 16 10836 44588
Firenzuola FI 16 4726 49314
Alto Reno Terme BO 17 6960 56274
Monzuno BO 17 6328 62602
Vergato BO 18 7639 70241
Loiano BO 19 4294 74535
Vaiano PO 19 9895 84430

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Prato (191150 inhabitants)
31 Km NE of Pistoia (90315 inhabitants)
41 Km N of Firenze (382808 inhabitants)
42 Km N of Scandicci (50609 inhabitants)
42 Km SW of Bologna (386663 inhabitants)
49 Km W of Imola (69797 inhabitants)
58 Km W of Faenza (58541 inhabitants)
60 Km SE of Modena (184973 inhabitants)
63 Km NE of Lucca (89046 inhabitants)
69 Km W of Forlì (117913 inhabitants)
76 Km SE of Carpi (70699 inhabitants)
77 Km SE of Reggio nell'Emilia (171345 inhabitants)
78 Km NE of Pisa (89158 inhabitants)
80 Km E of Viareggio (62467 inhabitants)
84 Km E of Massa (69479 inhabitants)
85 Km W of Cesena (96758 inhabitants)
85 Km SW of Ferrara (133155 inhabitants)
87 Km W of Ravenna (159116 inhabitants)
87 Km E of Carrara (63133 inhabitants)
92 Km N of Siena (53903 inhabitants)
93 Km NW of Arezzo (99543 inhabitants)
95 Km NE of Livorno (159219 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.5 2020-10-27
02:32:26
44.14 11.18 10 2020-10-27
03:07:06
Sala Sismica INGV-Roma 84169811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-27 02:32:26 ± 0.07
Latitude 44.14 ± 0.00
Longitude 11.18 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84169811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 429
Semi-minor axis of confidence ellipse (meter) 394
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 177
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37861
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84169811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-27 03:07:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2020-10-27T02:32:58.65 3.0 undecidable manual S 0.33 0
IV.RUFI.EHZ. 2020-10-27T02:32:39.77 0.3 undecidable manual S 142 0.3786 50 -0.24 67
GU.POPM.HHZ. 2020-10-27T02:32:37.96 0.3 undecidable manual S 254 0.3202 50 -0.32 67
IV.ZCCA.HNZ. 2020-10-27T02:32:36.46 1.0 undecidable manual S 325 0.2617 50 -0.1 24
IV.RONT.HHZ. 2020-10-27T02:32:35.83 0.3 undecidable manual S 128 0.2284 50 0.27 69
IV.MPPT.EHZ. 2020-10-27T02:32:34.25 0.3 undecidable manual S 201 0.1898 115 0.02 73
IV.RUFI.EHZ. 2020-10-27T02:32:33.91 0.1 undecidable manual P 142 0.3786 50 -0.23 90
IV.VISG.HHZ. 2020-10-27T02:32:33.69 0.3 undecidable manual S 73 0.1871 116 -0.43 67
GU.POPM.HHZ. 2020-10-27T02:32:32.95 0.1 undecidable manual P 254 0.3202 50 -0.19 91
IV.ZCCA.HNZ. 2020-10-27T02:32:32.62 0.1 undecidable manual P 325 0.2617 50 0.47 88
IV.MOCL.EHZ. 2020-10-27T02:32:32.44 0.3 undecidable manual S 181 0.1304 125 0.21 71
IV.MTRZ.HHZ. 2020-10-27T02:32:32.38 0.1 undecidable manual P 44 0.2473 50 0.48 88
IV.SEI.HHZ. 2020-10-27T02:32:32.89 0.3 undecidable manual S 123 0.1493 121 0.06 73
IV.RONT.HHZ. 2020-10-27T02:32:31.48 0.1 undecidable manual P 128 0.2284 50 -0.09 96
IV.SEI.HHZ. 2020-10-27T02:32:30.00 0.1 undecidable manual P 123 0.1493 121 0.01 98
IV.VISG.HHZ. 2020-10-27T02:32:30.58 0.1 undecidable manual P 73 0.1871 116 -0.16 95
IV.MPPT.EHZ. 2020-10-27T02:32:30.85 0.1 undecidable manual P 201 0.1898 115 0.05 97
IV.FNVD.HHN. 2020-10-27T02:32:29.92 0.3 undecidable manual S 306 0.0549 149 -0.26 72
IV.MOCL.EHZ. 2020-10-27T02:32:29.85 0.1 undecidable manual P 181 0.1304 125 0.2 95
IV.FNVD.HHN. 2020-10-27T02:32:28.47 0.1 undecidable manual P 306 0.0549 149 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHE. ML:1.4 0.000273 0.62 AML other m 2020-10-27T02:32:32.21
IV.MOCL.EHN. ML:1.7 0.0005155 0.26 AML other m 2020-10-27T02:32:32.75
IV.SEI.HHN. ML:1.9 0.0006615 0.56 AML other m 2020-10-27T02:32:33.16
IV.VISG.HHE. ML:1.2 0.0001215 0.8 AML other m 2020-10-27T02:32:34.41
IV.VISG.HHN. ML:1.4 0.0001835 1.18 AML other m 2020-10-27T02:32:34.60
IV.SEI.HHE. ML:1.7 0.0004415 1.34 AML other m 2020-10-27T02:32:34.00
GU.POPM.HHN. ML:1.5 0.000126 1.04 AML other m 2020-10-27T02:32:38.66
GU.POPM.HHE. ML:1.4 9.26E-5 1.1 AML other m 2020-10-27T02:32:38.09
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download