Earthquake with magnitude of ML 0.9 on date 08-08-2019 and time 19:20:24 (UTC) in region 6 km E Sambuca Pistoiese (PT)

A magnitude ML 0.9 earthquake occured in region: 6 km E Sambuca Pistoiese (PT), on

  • 08-08-2019 19:20:24 (UTC)
  • 08-08-2019 21:20:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.11, 11.07 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
Sambuca Pistoiese PT 6 1626 1626
Castel di Casio BO 6 3448 5074
Camugnano BO 7 1885 6959
Castiglione dei Pepoli BO 7 5648 12607
Alto Reno Terme BO 9 6960 19567
Vernio PO 9 6060 25627
Cantagallo PO 10 3105 28732
Gaggio Montano BO 15 4878 33610
Lizzano in Belvedere BO 15 2212 35822
Vaiano PO 16 9895 45717
Grizzana Morandi BO 17 3916 49633
San Benedetto Val di Sambro BO 17 4315 53948
Barberino di Mugello FI 18 10836 64784
Vergato BO 20 7639 72423
Castel d'Aiano BO 20 1906 74329
Montale PT 20 10737 85066

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Pistoia (90315 inhabitants)
26 Km N of Prato (191150 inhabitants)
40 Km N of Scandicci (50609 inhabitants)
41 Km NW of Firenze (382808 inhabitants)
48 Km SW of Bologna (386663 inhabitants)
54 Km NE of Lucca (89046 inhabitants)
58 Km W of Imola (69797 inhabitants)
61 Km S of Modena (184973 inhabitants)
68 Km W of Faenza (58541 inhabitants)
69 Km NE of Pisa (89158 inhabitants)
71 Km E of Viareggio (62467 inhabitants)
74 Km SE of Reggio nell'Emilia (171345 inhabitants)
75 Km E of Massa (69479 inhabitants)
76 Km S of Carpi (70699 inhabitants)
78 Km E of Carrara (63133 inhabitants)
78 Km W of Forlì (117913 inhabitants)
87 Km NE of Livorno (159219 inhabitants)
91 Km N of Siena (53903 inhabitants)
92 Km SW of Ferrara (133155 inhabitants)
94 Km W of Cesena (96758 inhabitants)
96 Km W of Ravenna (159116 inhabitants)
97 Km NW of Arezzo (99543 inhabitants)
97 Km SE of Parma (192836 inhabitants)
99 Km E of La Spezia (93959 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 0.9 2019-08-08
19:20:24
44.11 11.07 11 2019-08-08
19:27:20
Sala Sismica INGV-Roma 71282481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-08 19:20:24 ± 0.24
Latitude 44.11 ± 0.01
Longitude 11.07 ± 0.02
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71282481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1849
Semi-minor axis of confidence ellipse (meter) 1141
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) 1850
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.34534
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 71282481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-08 19:27:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2019-08-08T19:22:12.91 3.0 undecidable manual Sg 16.42 0
IV.PLLN.EHZ. 2019-08-08T19:21:55.08 3.0 positive manual Pn -1.54 0
IV.CDRU.HHZ. 2019-08-08T19:21:47.59 3.0 undecidable manual Pg 16.17 0
MN.TRI.HHZ. 2019-08-08T19:21:29.16 3.0 undecidable manual Sg 6.01 0
IV.IMI.HHZ. 2019-08-08T19:21:29.69 3.0 undecidable manual Sn -0.19 0
IT.ORP.HGZ. 2019-08-08T19:21:16.49 3.0 undecidable manual Pn -6.29 0
IV.SACS.HHZ. 2019-08-08T19:21:07.08 3.0 undecidable manual Sg 1.34 0
IV.VVLD.HHZ. 2019-08-08T19:21:03.78 3.0 undecidable manual Pn -2.11 0
IV.COR1.EHZ. 2019-08-08T19:21:02.47 3.0 undecidable manual Sg -0.05 0
IV.MBAL.EHZ. 2019-08-08T19:20:48.13 3.0 negative manual Pg 3.2 0
IV.ATPI.EHZ. 2019-08-08T19:20:43.84 3.0 negative manual Pg 2.71 0
IV.COR1.EHZ. 2019-08-08T19:20:42.67 3.0 undecidable manual Pg -1.6 0
IV.ROVR.HHZ. 2019-08-08T19:20:42.92 3.0 negative manual Pg -0.95 0
IV.BDI.HHE. 2019-08-08T19:20:37.29 0.3 undecidable manual S 262 0.3453 50 -0.07 76
IV.CRMI.HHZ. 2019-08-08T19:20:36.59 0.3 undecidable manual S 192 0.3229 50 -0.1 76
IV.NARO.HHZ. 2019-08-08T19:20:35.52 3.0 undecidable manual P -5.42 0
IV.GSCL.HHZ. 2019-08-08T19:20:34.80 3.0 undecidable manual P 0
GU.POPM.HHZ. 2019-08-08T19:20:33.77 0.3 undecidable manual S 254 0.2356 50 -0.34 73
IV.BDI.HHE. 2019-08-08T19:20:32.25 0.1 undecidable manual P 262 0.3453 50 0.31 96
IV.CRMI.HHZ. 2019-08-08T19:20:31.77 0.3 undecidable manual P 192 0.3229 50 0.22 74
IV.MPPT.EHZ. 2019-08-08T19:20:31.07 0.3 undecidable manual S 175 0.1547 121 -0.46 72
GU.POPM.HHZ. 2019-08-08T19:20:30.37 0.1 undecidable manual P 254 0.2356 50 0.3 98
IV.ZCCA.HHZ. 2019-08-08T19:20:29.96 0.1 undecidable manual P 344 0.2482 50 -0.32 98
IV.MPPT.EHZ. 2019-08-08T19:20:28.87 0.1 undecidable manual P 175 0.1547 121 0.29 100
IV.SEI.HHZ. 2019-08-08T19:20:27.76 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPPT.EHE. ML:1 9.715E-5 0.14 AML other m 2019-08-08T19:20:31.28
IV.MPPT.EHN. ML:1.1 0.000109 0.28 AML other m 2019-08-08T19:20:31.29
GU.POPM.HHE. ML:1.3 9.985E-5 0.24 AML other m 2019-08-08T19:20:33.85
GU.POPM.HHN. ML:1.2 9.17E-5 1.08 AML other m 2019-08-08T19:20:34.68
IV.SEI.HHN. ML:0.8 4.24E-5 1.36 AML other m 2019-08-08T19:20:34.04
IV.SEI.HHE. ML:0.7 2.96E-5 0.22 AML other m 2019-08-08T19:20:35.44
IV.CRMI.HHE. ML:0.4 8.955E-6 0.24 AML other m 2019-08-08T19:20:36.79
IV.CRMI.HHN. ML:0.1 5.275E-6 0.42 AML other m 2019-08-08T19:21:00.46
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