Earthquake with magnitude of ML 1.0 on date 27-04-2019 and time 12:19:43 (Italy) in region 5 km S Firenzuola (FI)

A magnitude ML 1.0 earthquake occured in region: 5 km S Firenzuola (FI), on

  • 27-04-2019 10:19:43 (UTC)
  • 27-04-2019 12:19:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.08, 11.38 at 8 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
Firenzuola FI 5 4726 4726
Scarperia e San Piero FI 13 12217 16943
Borgo San Lorenzo FI 14 18211 35154
Barberino di Mugello FI 14 10836 45990
Palazzuolo sul Senio FI 14 1154 47144
Monghidoro BO 17 3749 50893
Vicchio FI 17 8044 58937
Vernio PO 18 6060 64997
Castel del Rio BO 18 1246 66243
Marradi FI 19 3139 69382
San Benedetto Val di Sambro BO 19 4315 73697
Castiglione dei Pepoli BO 19 5648 79345

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Prato (191150 inhabitants)
36 Km N of Firenze (382808 inhabitants)
39 Km NE of Scandicci (50609 inhabitants)
40 Km E of Pistoia (90315 inhabitants)
41 Km SW of Imola (69797 inhabitants)
47 Km S of Bologna (386663 inhabitants)
47 Km W of Faenza (58541 inhabitants)
55 Km W of Forlì (117913 inhabitants)
69 Km W of Cesena (96758 inhabitants)
73 Km SE of Modena (184973 inhabitants)
75 Km E of Lucca (89046 inhabitants)
76 Km W of Ravenna (159116 inhabitants)
79 Km NW of Arezzo (99543 inhabitants)
85 Km N of Siena (53903 inhabitants)
87 Km S of Ferrara (133155 inhabitants)
88 Km SE of Carpi (70699 inhabitants)
88 Km E of Pisa (89158 inhabitants)
91 Km SE of Reggio nell'Emilia (171345 inhabitants)
93 Km E of Viareggio (62467 inhabitants)
95 Km W of Rimini (147750 inhabitants)
99 Km E of Massa (69479 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 1.0 2019-04-27
10:19:43
44.08 11.38 8 2019-04-27
10:33:28
Sala Sismica INGV-Roma 68014841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-27 10:19:43 ± 0.13
Latitude 44.08 ± 0.01
Longitude 11.38 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 68014841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 662
Semi-minor axis of confidence ellipse (meter) 376
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 352
Circular confidence region, given by single value of horizontal uncertainty (meter) 660
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 12
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
Epicentral distance of station farthest from the epicenter (degree) 0.27429
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 68014841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-27 10:33:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTGR.HHZ. 2019-04-27T10:21:33.54 3.0 positive manual Pg 17.299999 0
IV.MIDA.HHZ. 2019-04-27T10:21:24.40 3.0 undecidable manual Sg 10.41 0
IV.ALJA.HHZ. 2019-04-27T10:21:19.96 3.0 negative manual Pn -0.49 0
IV.RESU.HHZ. 2019-04-27T10:21:19.56 3.0 undecidable manual Pn -3.15 0
IV.CET2.HHZ. 2019-04-27T10:21:10.90 3.0 undecidable manual Pn 2.56 0
IX.STN3.HHZ.02 2019-04-27T10:20:53.50 3.0 negative manual Pn -2.05 0
IV.EUCT.HNZ. 2019-04-27T10:20:48.74 3.0 undecidable manual Sg 3.45 0
MN.BNI.HHZ. 2019-04-27T10:20:47.25 3.0 undecidable manual Pg 7.82 0
IV.COLB.HHZ. 2019-04-27T10:20:41.77 3.0 positive manual Pn -1.28 0
IV.PTRJ.HHZ. 2019-04-27T10:20:40.49 3.0 undecidable manual Pn 1.23 0
IV.ROVR.HHZ. 2019-04-27T10:20:34.49 3.0 undecidable manual S -1.83 0
IV.MSSA.HHZ. 2019-04-27T10:20:27.93 3.0 undecidable manual S -2.41 0
IV.MNTV.HNZ. 2019-04-27T10:20:03.42 3.0 undecidable manual P -4.02 0
IV.RIBO.EHZ.01 2019-04-27T10:20:02.55 3.0 negative manual P -3.65 0
IV.NDIM.HNZ. 2019-04-27T10:19:58.64 3.0 positive manual P -4.31 0
IV.LMD.HHZ. 2019-04-27T10:19:53.48 0.6 undecidable manual S 90 0.2365 106 0.05 50
IV.FNVD.HHZ. 2019-04-27T10:19:52.32 0.6 undecidable manual S 296 0.2032 109 0.1 50
IV.RUFI.EHZ. 2019-04-27T10:19:50.03 0.3 negative manual P 158 0.2581 105 0.16 73
IV.MOCL.EHZ. 2019-04-27T10:19:50.76 0.3 undecidable manual S 243 0.1592 114 0.14 75
IV.MTRZ.HHE. 2019-04-27T10:19:49.80 0.1 undecidable manual P 8 0.2374 106 0.38 94
IV.LMD.HHZ. 2019-04-27T10:19:49.16 0.1 negative manual P 90 0.2365 106 -0.25 96
IV.MPPT.EHZ. 2019-04-27T10:19:49.54 0.1 undecidable manual P 240 0.2392 106 0.07 100
IV.MTCR.EHZ. 2019-04-27T10:19:49.98 0.1 negative manual P 260 0.2743 104 -0.24 96
IV.FNVD.HHZ. 2019-04-27T10:19:48.34 0.1 undecidable manual P 296 0.2032 109 -0.37 95
IV.MOCL.EHZ. 2019-04-27T10:19:47.99 0.1 undecidable manual P 243 0.1592 114 0.2 99
IV.SEI.HHZ. 2019-04-27T10:19:46.77 0.3 undecidable manual S 210 0.027 158 -0.03 79
IV.SEI.HHZ. 2019-04-27T10:19:45.50 0.3 undecidable manual P 210 0.027 158 -0.09 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:0 0.0008947358 0.2624 AML other m 2019-04-27T10:19:46.85
IV.SEI.HHN. ML:0 0.001407864 0.2048 AML other m 2019-04-27T10:19:47.09
IV.MOCL.EHE. ML:1.4 0.0002347245 0.224 AML other m 2019-04-27T10:19:50.96
IV.MOCL.EHN. ML:1.4 0.00021661065 0.2816 AML other m 2019-04-27T10:19:50.96
IV.LMD.HHE. ML:0.5 2.152876E-5 0.2368 AML other m 2019-04-27T10:19:55.04
IV.LMD.HHN. ML:0.6 2.7022859E-5 0.096 AML other m 2019-04-27T10:19:53.92
IV.MTCR.EHE. ML:1.2 8.2362755E-5 0.2176 AML other m 2019-04-27T10:19:54.30
IV.MTCR.EHN. ML:1.2 6.917301E-5 0.2176 AML other m 2019-04-27T10:19:54.41
IV.RUFI.EHE. ML:0.7 2.338686E-5 0.5248 AML other m 2019-04-27T10:19:56.89
IV.RUFI.EHN. ML:0.8 2.8987925E-5 0.32 AML other m 2019-04-27T10:19:55.21
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