Earthquake with magnitude of ML 0.9 on date 26-06-2020 and time 23:43:11 (Italy) in region 3 km SE Empoli (FI)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Empoli (FI), on

  • 26-06-2020 21:43:11 (UTC)
  • 26-06-2020 23:43:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7, 10.98 at 9 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
Empoli FI 3 48109 48109
Montelupo Fiorentino FI 5 14098 62207
Capraia e Limite FI 5 7670 69877
Montespertoli FI 10 13537 83414
San Miniato PI 10 27934 111348
Cerreto Guidi FI 11 10870 122218
Castelfiorentino FI 11 17504 139722
Vinci FI 11 14604 154326
Lastra a Signa FI 13 20156 174482
Carmignano PO 13 14450 188932
Signa FI 13 19179 208111
Fucecchio FI 14 23618 231729
Poggio a Caiano PO 14 10007 241736
Lamporecchio PT 15 7508 249244
Larciano PT 16 6394 255638
Santa Croce sull'Arno PI 16 14601 270239
Quarrata PT 16 26190 296429
Montaione FI 17 3700 300129
San Casciano in Val di Pesa FI 17 17062 317191
Scandicci FI 18 50609 367800
Certaldo FI 18 16121 383921
Montopoli in Val d'Arno PI 18 11148 395069
Gambassi Terme FI 18 4870 399939
Campi Bisenzio FI 19 46166 446105
Castelfranco di Sotto PI 19 13427 459532
Palaia PI 20 4612 464144

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Scandicci (50609 inhabitants)
22 Km SW of Prato (191150 inhabitants)
24 Km W of Firenze (382808 inhabitants)
27 Km S of Pistoia (90315 inhabitants)
42 Km E of Lucca (89046 inhabitants)
47 Km E of Pisa (89158 inhabitants)
51 Km NW of Siena (53903 inhabitants)
56 Km E of Livorno (159219 inhabitants)
61 Km E of Viareggio (62467 inhabitants)
77 Km E of Massa (69479 inhabitants)
77 Km W of Arezzo (99543 inhabitants)
82 Km SE of Carrara (63133 inhabitants)
93 Km SW of Bologna (386663 inhabitants)
94 Km SW of Imola (69797 inhabitants)
97 Km SW of Faenza (58541 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 0.9 2020-06-26
21:43:11
43.7 10.98 9 2020-06-26
21:49:35
Sala Sismica INGV-Roma 80541941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-26 21:43:11 ± 0.18
Latitude 43.70 ± 0.01
Longitude 10.98 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80541941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 995
Semi-minor axis of confidence ellipse (meter) 609
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 360
Circular confidence region, given by single value of horizontal uncertainty (meter) 990
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 11
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) 1.43442
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
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 80541941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-26 21:49:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VITU.HHZ. 2020-06-26T21:44:58.40 3.0 undecidable manual Sn 3.65 0
IV.ROM9.HNZ. 2020-06-26T21:44:15.67 3.0 undecidable manual Sn -1.99 0
GU.GENL.EHZ. 2020-06-26T21:44:03.93 3.0 undecidable manual Sn -0.48 0
IV.ARVD.HHZ. 2020-06-26T21:43:56.98 0.3 undecidable manual P 1.4344 1.92 0
IV.NARO.HHZ. 2020-06-26T21:43:35.17 3.0 positive manual P -0.18 0
IV.RUFI.EHZ. 2020-06-26T21:43:26.48 0.1 undecidable manual S 70 0.4065 50 -0.04 97
IV.PII.HHZ. 2020-06-26T21:43:24.00 0.1 undecidable manual S 274 0.3292 50 -0.25 95
IV.CSNT.HHZ. 2020-06-26T21:43:23.77 0.1 undecidable manual S 135 0.3193 50 -0.18 96
IV.MPPT.EHZ. 2020-06-26T21:43:22.40 0.1 undecidable manual S 17 0.2689 107 0.05 100
IV.RUFI.EHZ. 2020-06-26T21:43:20.67 1.0 positive manual P 70 0.4065 50 0.48 22
IV.PII.HHZ. 2020-06-26T21:43:19.35 0.3 negative manual P 274 0.3292 50 0.47 68
IV.CSNT.HHZ. 2020-06-26T21:43:18.98 1.0 undecidable manual P 135 0.3193 50 0.27 24
IV.MPPT.EHZ. 2020-06-26T21:43:17.90 0.6 negative manual P 17 0.2689 107 0.11 49
IV.CRMI.HHZ. 2020-06-26T21:43:16.07 0.1 undecidable manual S 360 0.0953 130 -0.26 99
IV.CRMI.HHZ. 2020-06-26T21:43:14.54 0.6 undecidable manual P 360 0.0953 130 0.23 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HHN. ML:0.5 3.935E-5 0.72 AML other m 2020-06-26T21:43:16.51
IV.CRMI.HHE. ML:0.6 5.375E-5 1.48 AML other m 2020-06-26T21:43:16.22
IV.MPPT.EHE. ML:1.2 6.935E-5 0.78 AML other m 2020-06-26T21:43:23.02
IV.MPPT.EHN. ML:1 5.63E-5 0.38 AML other m 2020-06-26T21:43:23.55
IV.CSNT.HHN. ML:0.8 2.41E-5 1.18 AML other m 2020-06-26T21:43:24.91
IV.CSNT.HHE. ML:0.6 1.305E-5 1.82 AML other m 2020-06-26T21:43:24.92
IV.PII.HHE. ML:1.3 6.865E-5 0.24 AML other m 2020-06-26T21:43:25.01
IV.PII.HHN. ML:1.3 8.59E-5 0.24 AML other m 2020-06-26T21:43:25.59
GU.GENL.EHE. ML:2.8 0.000225 1.46 AML other m 2020-06-26T21:44:11.06
GU.GENL.EHN. ML:2.7 0.000207 1.32 AML other m 2020-06-26T21:44:22.30
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