Earthquake with magnitude of ML 1.2 on date 05-08-2018 and time 11:49:31 (Italy) in region 5 km S Castiglione dei Pepoli (BO)

A magnitude ML 1.2 earthquake occured in region: 5 km S Castiglione dei Pepoli (BO), on

  • 05-08-2018 09:49:31 (UTC)
  • 05-08-2018 11:49:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1, 11.14 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 5 5648 5648
Vernio PO 5 6060 11708
Cantagallo PO 8 3105 14813
Camugnano BO 9 1885 16698
Castel di Casio BO 11 3448 20146
Sambuca Pistoiese PT 12 1626 21772
Barberino di Mugello FI 13 10836 32608
Vaiano PO 15 9895 42503
Alto Reno Terme BO 15 6960 49463
San Benedetto Val di Sambro BO 15 4315 53778
Grizzana Morandi BO 18 3916 57694
Firenzuola FI 19 4726 62420
Monghidoro BO 19 3749 66169
Gaggio Montano BO 20 4878 71047

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Prato (191150 inhabitants)
26 Km NE of Pistoia (90315 inhabitants)
38 Km N of Firenze (382808 inhabitants)
38 Km N of Scandicci (50609 inhabitants)
47 Km SW of Bologna (386663 inhabitants)
54 Km SW of Imola (69797 inhabitants)
59 Km E of Lucca (89046 inhabitants)
63 Km W of Faenza (58541 inhabitants)
63 Km S of Modena (184973 inhabitants)
73 Km W of Forlì (117913 inhabitants)
73 Km NE of Pisa (89158 inhabitants)
76 Km E of Viareggio (62467 inhabitants)
78 Km SE of Reggio nell'Emilia (171345 inhabitants)
79 Km S of Carpi (70699 inhabitants)
80 Km E of Massa (69479 inhabitants)
84 Km E of Carrara (63133 inhabitants)
88 Km W of Cesena (96758 inhabitants)
88 Km N of Siena (53903 inhabitants)
90 Km SW of Ferrara (133155 inhabitants)
90 Km NE of Livorno (159219 inhabitants)
91 Km W of Ravenna (159116 inhabitants)
92 Km NW of Arezzo (99543 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
Rev 100 ML 1.2 2018-08-05
09:49:31
44.1 11.14 10 2018-08-05
09:58:04
Sala Sismica INGV-Roma 59388871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-05 09:49:31 ± 0.09
Latitude 44.10 ± 0.00
Longitude 11.14 ± 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 59388871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 480
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32555
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 59388871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-05 09:58:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2018-08-05T09:49:39.47 3.0 positive manual P -0.07 0
IV.CRMI.HHN. 2018-08-05T09:49:38.41 0.3 undecidable manual P 201 0.3256 50 -0.12 70
IV.MPPT.EHZ. 2018-08-05T09:49:38.09 0.1 undecidable manual S 195 0.1466 122 -0.03 99
IV.MTCR.EHZ. 2018-08-05T09:49:37.40 0.1 undecidable manual S 235 0.1232 127 0 100
IV.MOCL.EHZ. 2018-08-05T09:49:36.55 0.1 undecidable manual S 164 0.098 133 -0.09 99
IV.MTCR.EHZ. 2018-08-05T09:49:35.12 1.0 undecidable manual P 235 0.1232 127 0.24 24
IV.FNVD.HHE. 2018-08-05T09:49:35.84 0.1 undecidable manual S 348 0.0701 143 -0.09 99
IV.MPPT.EHZ. 2018-08-05T09:49:35.33 0.1 undecidable manual P 195 0.1466 122 0.03 99
IV.SEI.HHZ. 2018-08-05T09:49:35.38 3.0 undecidable manual P 0.23 0
IV.FNVD.HHE. 2018-08-05T09:49:34.09 0.1 undecidable manual P 348 0.0701 143 0.06 100
IV.MOCL.EHZ. 2018-08-05T09:49:34.59 0.1 negative manual P 164 0.098 133 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHN. ML:1.3 0.000241 0.16 AML other m 2018-08-05T09:49:36.77
IV.MOCL.EHE. ML:1.2 0.0001875 0.2 AML other m 2018-08-05T09:49:36.79
IV.MTCR.EHE. ML:1.5 0.000306 0.1 AML other m 2018-08-05T09:49:37.61
IV.MTCR.EHN. ML:1.3 0.00021 0.36 AML other m 2018-08-05T09:49:37.87
IV.MPPT.EHN. ML:1.1 0.00010445 0.3 AML other m 2018-08-05T09:49:38.31
IV.MPPT.EHE. ML:0.8 5.95E-5 1.34 AML other m 2018-08-05T09:49:38.93
IV.SEI.HHN. ML:1 7.78E-5 0.4 AML other m 2018-08-05T09:49:40.44
IV.SEI.HHE. ML:0.9 6.805E-5 1.68 AML other m 2018-08-05T09:49:42.86
GU.POPM.HHE. ML:1.2 7.58E-5 0.18 AML other m 2018-08-05T09:49:43.01
GU.POPM.HHN. ML:1.3 9.32E-5 0.96 AML other m 2018-08-05T09:49:43.64
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