Earthquake with magnitude of ML 1.5 on date 28-06-2022 and time 23:39:46 (UTC) in region 4 km SW Montelupo Fiorentino (FI)

A magnitude ML 1.5 earthquake occured in region: 4 km SW Montelupo Fiorentino (FI), on

  • 28-06-2022 23:39:46 (UTC)
  • 29-06-2022 01:39:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6980, 10.9930 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
Montelupo Fiorentino FI 4 14098 14098
Empoli FI 4 48109 62207
Capraia e Limite FI 5 7670 69877
Montespertoli FI 9 13537 83414
Castelfiorentino FI 10 17504 100918
Vinci FI 11 14604 115522
San Miniato PI 11 27934 143456
Cerreto Guidi FI 12 10870 154326
Lastra a Signa FI 12 20156 174482
Signa FI 13 19179 193661
Carmignano PO 13 14450 208111
Poggio a Caiano PO 14 10007 218118
Fucecchio FI 15 23618 241736
Lamporecchio PT 15 7508 249244
San Casciano in Val di Pesa FI 16 17062 266306
Scandicci FI 17 50609 316915
Quarrata PT 17 26190 343105
Larciano PT 17 6394 349499
Certaldo FI 17 16121 365620
Santa Croce sull'Arno PI 17 14601 380221
Montaione FI 17 3700 383921
Gambassi Terme FI 18 4870 388791
Campi Bisenzio FI 18 46166 434957
Montopoli in Val d'Arno PI 19 11148 446105
Castelfranco di Sotto PI 20 13427 459532

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km W of Scandicci (50609 inhabitants)
22 Km SW of Prato (191150 inhabitants)
23 Km W of Firenze (382808 inhabitants)
27 Km S of Pistoia (90315 inhabitants)
43 Km E of Lucca (89046 inhabitants)
48 Km E of Pisa (89158 inhabitants)
50 Km NW of Siena (53903 inhabitants)
57 Km E of Livorno (159219 inhabitants)
63 Km E of Viareggio (62467 inhabitants)
76 Km W of Arezzo (99543 inhabitants)
78 Km E of Massa (69479 inhabitants)
83 Km SE of Carrara (63133 inhabitants)
93 Km SW of Bologna (386663 inhabitants)
93 Km SW of Imola (69797 inhabitants)
97 Km SW of Faenza (58541 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 1.5 2022-06-28
23:39:46
43.6985 10.9927 10 2022-06-28
23:45:25
Sala Sismica INGV-Roma 106592311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-06-28 23:39:46 ± 0.07
Latitude 43.6985 ± 0.0045
Longitude 10.9927 ± 0.0062
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 106592311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 562
Semi-minor axis of confidence ellipse (meter) 351
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 106592311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-06-28 23:45:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2022-06-28T23:40:20.37 3.0 negative manual Pn -0.54 0
IV.SENI.HNZ. 2022-06-28T23:40:16.17 3.0 negative manual Pn 0.19 0
IV.CRE.HHZ. 2022-06-28T23:40:00.79 3.0 negative manual P -0.63 0
IV.LMD.HHZ. 2022-06-28T23:39:59.38 3.0 undecidable manual P -0.55 0
IV.PII.HHZ. 2022-06-28T23:39:58.36 0.3 undecidable manual S 274 0.3390 50 -0.65 61
IV.MPPT.EHZ. 2022-06-28T23:39:57.01 0.3 undecidable manual S 15 0.2680 50 0.08 72
IV.CSNT.HHZ. 2022-06-28T23:39:57.83 0.3 undecidable manual S 136 0.3121 50 -0.38 67
IV.MAGO.CHN. 2022-06-28T23:39:56.43 0.3 undecidable manual P 210 0.4892 50 0.24 66
ZH.T1647.EHZ. 2022-06-28T23:39:56.42 0.6 undecidable manual S 112 0.2482 50 0.09 48
IV.FROS.CHZ. 2022-06-28T23:39:56.54 0.3 undecidable manual P 166 0.5027 50 0.12 68
IV.BDI.HHZ. 2022-06-28T23:39:56.50 0.3 undecidable manual P 322 0.4632 50 0.76 57
IV.SEI.HHZ. 2022-06-28T23:39:55.82 0.6 undecidable manual P 36 0.4425 50 0.43 43
ZH.T1648.EHZ. 2022-06-28T23:39:55.34 0.3 undecidable manual S 99 0.2122 113 0.27 70
GU.MAIM.HHZ. 2022-06-28T23:39:55.44 0.3 undecidable manual P 301 0.4200 50 0.43 65
GU.POPM.HHZ. 2022-06-28T23:39:54.39 0.3 undecidable manual P 334 0.3858 50 -0.03 71
IV.BOSL.HHZ. 2022-06-28T23:39:54.12 0.6 negative manual P 50 0.3606 50 0.14 46
IV.PII.HHZ. 2022-06-28T23:39:53.64 0.3 undecidable manual P 274 0.3390 50 0.03 72
ZH.T1614.EHZ. 2022-06-28T23:39:53.42 0.3 undecidable manual S 85 0.1709 117 -0.23 71
IV.MOCL.EHZ. 2022-06-28T23:39:53.46 0.6 positive manual P 24 0.3345 50 -0.09 47
ZH.T1618.EHZ. 2022-06-28T23:39:53.24 0.3 undecidable manual S 135 0.1538 120 0.17 72
IV.MPPT.EHZ. 2022-06-28T23:39:52.20 0.6 positive manual P 15 0.2680 50 -0.2 47
IV.CSNT.HHZ. 2022-06-28T23:39:52.87 1.0 positive manual P 136 0.3121 50 -0.28 23
ZH.T1646.EHZ. 2022-06-28T23:39:51.43 0.3 undecidable manual S 115 0.0926 134 0.27 71
ZH.T1647.EHZ. 2022-06-28T23:39:51.76 0.3 undecidable manual P 112 0.2482 50 -0.31 69
ZH.T1648.EHZ. 2022-06-28T23:39:51.38 0.6 positive manual P 99 0.2122 113 0.04 49
ZH.T1614.EHZ. 2022-06-28T23:39:50.37 0.1 undecidable manual P 85 0.1709 117 -0.15 96
ZH.T1618.EHZ. 2022-06-28T23:39:50.01 0.3 undecidable manual P 135 0.1538 120 -0.18 72
IV.FIR.HHZ. 2022-06-28T23:39:50.97 0.6 undecidable manual P 68 0.2041 113 -0.21 47
IV.CRMI.HHZ. 2022-06-28T23:39:50.97 0.3 undecidable manual S 354 0.0971 132 -0.33 70
IV.CRMI.HHZ. 2022-06-28T23:39:49.13 0.1 undecidable manual P 354 0.0971 132 -0.03 100
ZH.T1646.EHZ. 2022-06-28T23:39:49.12 0.1 negative manual P 115 0.0926 134 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ZH.T1646.EHN. ML:2.3 0.00276 0.18 AML other m 2022-06-28T23:39:51.68
ZH.T1646.EHE. ML:2.2 0.001845 1.32 AML other m 2022-06-28T23:39:52.11
ZH.T1648.EHN. ML:1.5 0.00020850000000000003 0.6 AML other m 2022-06-28T23:39:55.84
ZH.T1648.EHE. ML:1.5 0.00019250000000000002 0.72 AML other m 2022-06-28T23:39:55.75
IV.MPPT.EHE. ML:1.5 0.00015900000000000002 0.36 AML other m 2022-06-28T23:39:57.30
IV.MPPT.EHN. ML:1.4 0.0001225 0.16 AML other m 2022-06-28T23:39:57.84
IV.MOCL.EHE. ML:1.4 0.00008724999999999999 0.7 AML other m 2022-06-28T23:39:59.81
IV.BOSL.HHE. ML:1.0 0.00003315 0.96 AML other m 2022-06-28T23:40:00.09
IV.BOSL.HHN. ML:1.2 0.0000504 0.26 AML other m 2022-06-28T23:40:00.11
GU.POPM.HHN. ML:1.6 0.000128 1.04 AML other m 2022-06-28T23:40:02.83
GU.POPM.HHE. ML:1.8 0.0002145 0.22 AML other m 2022-06-28T23:40:02.33
IV.MOCL.EHN. ML:1.2 0.0000629 1.38 AML other m 2022-06-28T23:40:02.13
IV.BDI.HHN. ML:1.4 0.000060150000000000005 0.46 AML other m 2022-06-28T23:40:08.10
IV.BDI.HHE. ML:1.4 0.00006709999999999999 0.8 AML other m 2022-06-28T23:40:08.83
IV.CRE.HHN. ML:1.8 0.00009345000000000001 0.26 AML other m 2022-06-28T23:40:11.21
IV.CRE.HHE. ML:1.8 0.0000897 1.46 AML other m 2022-06-28T23:40:11.02
IV.SENI.HNE. ML:3.7 0.00174 0.26 AML other m 2022-06-28T23:40:24.71
IV.SENI.HNN. ML:3.6 0.0015099999999999998 0.32 AML other m 2022-06-28T23:40:24.66
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