Earthquake with magnitude of ML 0.8 on date 20-06-2022 and time 12:08:01 (Italy) in region 5 km W Montespertoli (FI)

A magnitude ML 0.8 earthquake occured in region: 5 km W Montespertoli (FI), on

  • 20-06-2022 10:08:01 (UTC)
  • 20-06-2022 12:08:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6580, 11.0170 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
Montespertoli FI 5 13537 13537
Castelfiorentino FI 7 17504 31041
Montelupo Fiorentino FI 8 14098 45139
Empoli FI 9 48109 93248
Capraia e Limite FI 10 7670 100918
Certaldo FI 12 16121 117039
San Miniato PI 13 27934 144973
San Casciano in Val di Pesa FI 14 17062 162035
Gambassi Terme FI 14 4870 166905
Montaione FI 14 3700 170605
Lastra a Signa FI 15 20156 190761
Signa FI 15 19179 209940
Cerreto Guidi FI 16 10870 220810
Vinci FI 16 14604 235414
Tavarnelle Val di Pesa FI 17 7800 243214
Scandicci FI 17 50609 293823
Carmignano PO 17 14450 308273
Poggio a Caiano PO 18 10007 318280
Barberino Val d'Elsa FI 18 4386 322666
Fucecchio FI 18 23618 346284
Impruneta FI 20 14615 360899

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SW of Scandicci (50609 inhabitants)
23 Km SW of Firenze (382808 inhabitants)
26 Km S of Prato (191150 inhabitants)
32 Km S of Pistoia (90315 inhabitants)
46 Km NW of Siena (53903 inhabitants)
46 Km E of Lucca (89046 inhabitants)
50 Km E of Pisa (89158 inhabitants)
58 Km E of Livorno (159219 inhabitants)
66 Km E of Viareggio (62467 inhabitants)
73 Km W of Arezzo (99543 inhabitants)
82 Km SE of Massa (69479 inhabitants)
87 Km SE of Carrara (63133 inhabitants)
95 Km SW of Imola (69797 inhabitants)
97 Km S of Bologna (386663 inhabitants)
98 Km SW of Faenza (58541 inhabitants)
100 Km N of Grosseto (82087 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.8 2022-06-20
10:08:01
43.6585 11.0167 11 2022-06-20
10:22:48
Sala Sismica INGV-Roma 106287871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-06-20 10:08:01 ± 0.09
Latitude 43.6585 ± 0.0063
Longitude 11.0167 ± 0.0087
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 106287871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 14
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36063
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 106287871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-06-20 10:22:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CROCE.HHZ. 2022-06-20T10:09:44.79 3.0 positive manual Pn -0.5 0
GU.RRL.HHZ. 2022-06-20T10:09:27.07 3.0 undecidable manual Sn 6.25 0
IV.NOCI.HHZ. 2022-06-20T10:09:18.53 3.0 positive manual Pn -1.44 0
IV.AGLI.HHZ. 2022-06-20T10:09:14.87 3.0 undecidable manual Sn -0.31 0
IX.RSF3.HHZ.02 2022-06-20T10:09:08.80 3.0 undecidable manual Pn 6.19 0
IV.MONC.HHZ. 2022-06-20T10:09:05.15 3.0 undecidable manual Sn -0.31 0
NI.VINO.HHZ. 2022-06-20T10:08:56.55 3.0 undecidable manual Pg 9.69 0
IV.PTCC.HHZ. 2022-06-20T10:08:55.51 3.0 undecidable manual Pg 6.52 0
IV.FOSV.EHZ. 2022-06-20T10:08:48.32 3.0 undecidable manual Sn -0.49 0
GU.RRL.HHZ. 2022-06-20T10:08:47.64 3.0 negative manual Pn 4.34 0
IV.MMO1.EHZ. 2022-06-20T10:08:37.37 3.0 undecidable manual Pg 4.96 0
IV.MONC.HHZ. 2022-06-20T10:08:35.72 3.0 positive manual Pn 1.05 0
IV.PIEI.HHZ. 2022-06-20T10:08:24.83 3.0 undecidable manual Pg 2.32 0
IV.FRON.EHZ. 2022-06-20T10:08:24.27 3.0 undecidable manual Pn -0.16 0
GU.RNCA.HHZ. 2022-06-20T10:08:23.78 3.0 undecidable manual Pn 2.06 0
IV.ATCC.EHZ. 2022-06-20T10:08:21.86 3.0 negative manual Pn -2.71 0
GU.GRAM.HHZ. 2022-06-20T10:08:13.38 3.0 undecidable manual P -0.26 0
IV.CSNT.HHE. 2022-06-20T10:08:12.12 0.6 undecidable manual S 133 0.2716 50 -0.17 47
IV.OSSC.HHZ. 2022-06-20T10:08:11.04 0.6 undecidable manual S 129 0.2140 50 0.45 46
GU.POPM.HHZ. 2022-06-20T10:08:11.70 3.0 undecidable manual P 0
ZH.T1648.EHZ. 2022-06-20T10:08:09.79 0.6 undecidable manual S 88 0.1925 116 -0.13 49
IV.PII.HHE. 2022-06-20T10:08:09.39 0.1 undecidable manual P 280 0.3606 50 0.05 96
ZH.T1614.HNN. 2022-06-20T10:08:08.79 0.6 undecidable manual S 70 0.1628 120 -0.12 49
IV.MPPT.EHE. 2022-06-20T10:08:08.74 0.3 undecidable manual P 10 0.3040 50 0.38 69
IV.CSNT.HHE. 2022-06-20T10:08:07.53 0.1 undecidable manual P 133 0.2716 50 -0.27 93
IV.CRMI.HHZ. 2022-06-20T10:08:07.75 0.6 undecidable manual S 349 0.1394 124 -0.41 47
ZH.T1618.EHN. 2022-06-20T10:08:07.46 0.6 undecidable manual S 127 0.1151 129 0.07 49
ZH.T1648.EHZ. 2022-06-20T10:08:06.53 0.3 undecidable manual P 88 0.1925 116 0.1 74
IV.OSSC.HHZ. 2022-06-20T10:08:06.65 0.6 positive manual P 129 0.2140 50 -0.17 48
ZH.T1614.HNN. 2022-06-20T10:08:06.02 0.3 undecidable manual P 70 0.1628 120 0.17 73
GU.T1647.EHZ. 2022-06-20T10:08:06.25 3.0 undecidable manual P 0
ZH.T1618.EHN. 2022-06-20T10:08:05.00 0.1 undecidable manual P 127 0.1151 129 0.03 100
IV.CRMI.HHZ. 2022-06-20T10:08:05.43 0.3 undecidable manual P 349 0.1394 124 0.01 75
ZH.T1646.EHZ. 2022-06-20T10:08:04.40 3.0 negative manual P 0.04 0
GU.CARD.HHZ. 2022-06-20T10:08:01.16 3.0 negative manual P -1.96 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ZH.T1646.EHN. ML:1.2 0.00021399999999999997 0.2 AML other m 2022-06-20T10:08:06.56
ZH.T1646.EHE. ML:1.0 0.00014111535 0.1984 AML other m 2022-06-20T10:08:08.05
IV.CRMI.HHN. ML:0.7 0.00004615 0.22 AML other m 2022-06-20T10:08:07.85
IV.CRMI.HHE. ML:0.3 0.000017835378 0.0768 AML other m 2022-06-20T10:08:07.88
IV.OSSC.HHN. ML:0.5 0.00002245 0.46 AML other m 2022-06-20T10:08:12.05
IV.OSSC.HHE. ML:0.6 0.0000264 1.76 AML other m 2022-06-20T10:08:12.01
GU.GRAM.HHE. ML:1.8 0.00004635 0.56 AML other m 2022-06-20T10:08:48.79
GU.GRAM.HHN. ML:2.0 0.0000687 1.5 AML other m 2022-06-20T10:08:51.86
IV.FRON.EHE. ML:1.5 0.00001935 0.44 AML other m 2022-06-20T10:08:56.56
IV.FRON.EHN. ML:2.0 0.00006560000000000001 1.2 AML other m 2022-06-20T10:09:13.68
GU.CARD.HHE. ML:0.9 0.000013985481500000001 0.3008 AML other m 2022-06-20T10:08:11.88
GU.CARD.HHN. ML:1.0 0.000019110995 0.2432 AML other m 2022-06-20T10:08:14.66
ZH.T1646.HNE. ML:2.5 0.00501976 0.928 AML other m 2022-06-20T10:08:22.13
ZH.T1646.HNN. ML:2.8 0.008518093000000001 1.2928 AML other m 2022-06-20T10:08:26.06
IV.CRMI.HNE. ML:1.1 0.00011287056499999999 0.6336 AML other m 2022-06-20T10:08:07.34
IV.CRMI.HNN. ML:1.4 0.00024343884999999997 1.0944 AML other m 2022-06-20T10:08:14.85
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download