Earthquake with magnitude of ML 1.6 on date 03-01-2020 and time 05:03:07 (UTC) in region 1 km NW Calcinaia (PI)

A magnitude ML 1.6 earthquake occured in region: 1 km NW Calcinaia (PI), on

  • 03-01-2020 05:03:07 (UTC)
  • 03-01-2020 06:03:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.69, 10.61 at 1 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
Calcinaia PI 1 12439 12439
Vicopisano PI 2 8559 20998
Bientina PI 3 8062 29060
Pontedera PI 4 29223 58283
Buti PI 4 5791 64074
Cascina PI 5 45257 109331
Santa Maria a Monte PI 7 13253 122584
Ponsacco PI 8 15611 138195
Calci PI 8 6426 144621
Castelfranco di Sotto PI 11 13427 158048
Montopoli in Val d'Arno PI 13 11148 169196
Capannoli PI 13 6381 175577
Crespina Lorenzana PI 13 5457 181034
Santa Croce sull'Arno PI 14 14601 195635
Altopascio LU 15 15481 211116
Collesalvetti LI 15 16827 227943
San Giuliano Terme PI 16 31399 259342
Fauglia PI 16 3682 263024
Palaia PI 16 4612 267636
Porcari LU 17 8845 276481
Pisa PI 17 89158 365639
Fucecchio FI 17 23618 389257
Capannori LU 18 46252 435509
Casciana Terme Lari PI 18 12529 448038
Peccioli PI 18 4807 452845
Montecarlo LU 19 4428 457273
Chiesina Uzzanese PT 19 4552 461825
Lucca LU 19 89046 550871
Terricciola PI 19 4627 555498
San Miniato PI 20 27934 583432

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Pisa (89158 inhabitants)
19 Km SE of Lucca (89046 inhabitants)
28 Km NE of Livorno (159219 inhabitants)
35 Km SE of Viareggio (62467 inhabitants)
37 Km SW of Pistoia (90315 inhabitants)
45 Km W of Prato (191150 inhabitants)
47 Km W of Scandicci (50609 inhabitants)
53 Km W of Firenze (382808 inhabitants)
54 Km SE of Massa (69479 inhabitants)
59 Km SE of Carrara (63133 inhabitants)
72 Km NW of Siena (53903 inhabitants)
78 Km SE 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 1.6 2020-01-03
05:03:07
43.69 10.61 1 2020-01-03
05:08:14
Sala Sismica INGV-Roma 75218001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-03 05:03:07 ± 0.16
Latitude 43.69 ± 0.01
Longitude 10.61 ± 0.01
Depth (km) 1 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75218001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 938
Semi-minor axis of confidence ellipse (meter) 109
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 940
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.91821
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 75218001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-03 05:08:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MNTV.HNZ. 2020-01-03T05:03:38.27 3.0 negative manual P 3.32 0
GU.GRAM.HHZ. 2020-01-03T05:03:38.60 0.6 undecidable manual S 334 0.8894 50 0.05 46
IV.SEI.HHZ. 2020-01-03T05:03:32.44 0.6 undecidable manual S 56 0.652 50 0.93 36
GU.GSCL.HHZ. 2020-01-03T05:03:31.71 0.3 undecidable manual S 359 0.6592 50 -0.03 72
IV.PLMA.HHZ. 2020-01-03T05:03:30.13 0.6 undecidable manual S 304 0.6511 50 -1.35 30
IV.CSNT.HHZ. 2020-01-03T05:03:27.49 0.1 undecidable manual S 114 0.5396 50 -0.7 82
IV.CASP.HHZ. 2020-01-03T05:03:26.65 0.3 undecidable manual P 168 0.9182 50 0.76 56
IV.OSSC.HHZ. 2020-01-03T05:03:26.11 0.3 undecidable manual S 110 0.491 91 -0.22 72
GU.GRAM.HHZ. 2020-01-03T05:03:25.70 1.0 undecidable manual P 334 0.8894 50 0.31 22
MN.VLC.HHZ. 2020-01-03T05:03:25.57 0.1 undecidable manual S 341 0.4946 91 -0.9 76
IV.MPPT.EHZ. 2020-01-03T05:03:23.84 0.1 undecidable manual S 52 0.4389 91 -0.47 92
IV.MAGO.CHZ. 2020-01-03T05:03:22.71 0.1 undecidable manual S 175 0.4191 91 -0.83 80
GU.GSCL.HHZ. 2020-01-03T05:03:22.03 0.6 negative manual P 359 0.6592 50 0.57 42
IV.PLMA.HHZ. 2020-01-03T05:03:21.48 1.0 undecidable manual P 304 0.6511 50 0.17 23
IV.BDI.HHZ. 2020-01-03T05:03:21.43 0.1 undecidable manual S 359 0.3723 91 -0.32 96
IV.SEI.HHZ. 2020-01-03T05:03:21.14 0.6 undecidable manual P 56 0.652 50 -0.18 47
GU.POPM.HHZ. 2020-01-03T05:03:21.40 0.1 undecidable manual S 17 0.3705 91 -0.28 97
GU.CARD.HHZ. 2020-01-03T05:03:20.64 0.1 undecidable manual S 345 0.3471 91 -0.15 100
IV.FNVD.HHZ. 2020-01-03T05:03:20.91 0.1 positive manual P 38 0.6043 50 0.4 90
IV.CSNT.HHZ. 2020-01-03T05:03:19.43 0.6 negative manual P 114 0.5396 50 0.02 49
MN.VLC.HHZ. 2020-01-03T05:03:18.52 0.1 undecidable manual P 341 0.4946 91 0.1 98
IV.OSSC.HHZ. 2020-01-03T05:03:18.63 0.6 positive manual P 110 0.491 91 0.29 47
IV.MAGO.CHZ. 2020-01-03T05:03:17.11 0.1 negative manual P 175 0.4191 91 0.38 94
IV.MPPT.EHZ. 2020-01-03T05:03:17.47 0.1 undecidable manual P 52 0.4389 91 0.3 95
IV.BDI.HHZ. 2020-01-03T05:03:16.11 0.1 undecidable manual P 359 0.3723 91 0.42 94
GU.POPM.HHZ. 2020-01-03T05:03:16.24 0.1 positive manual P 17 0.3705 91 0.59 89
GU.CARD.HHZ. 2020-01-03T05:03:15.59 0.1 negative manual P 345 0.3471 91 0.46 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:1.7 0.000189 0.22 AML other m 2020-01-03T05:03:21.50
GU.CARD.HHN. ML:1.8 0.000228 1.58 AML other m 2020-01-03T05:03:22.02
IV.MAGO.CHE. ML:2 0.0002705 0.86 AML other m 2020-01-03T05:03:23.84
IV.MAGO.CHN. ML:2 0.000305 0.52 AML other m 2020-01-03T05:03:23.57
GU.POPM.HHE. ML:1.7 0.000158 0.16 AML other m 2020-01-03T05:03:23.60
GU.POPM.HHN. ML:1.8 0.0002095 0.36 AML other m 2020-01-03T05:03:23.42
IV.MPPT.EHE. ML:1.2 4.655E-5 1.28 AML other m 2020-01-03T05:03:24.08
IV.MPPT.EHN. ML:1.3 4.815E-5 1.24 AML other m 2020-01-03T05:03:24.94
IV.BDI.HHN. ML:1.2 5.38E-5 0.72 AML other m 2020-01-03T05:03:25.62
IV.BDI.HHE. ML:1.2 5.465E-5 0.64 AML other m 2020-01-03T05:03:25.70
MN.VLC.HHE. ML:1.4 6.18E-5 0.74 AML other m 2020-01-03T05:03:25.75
MN.VLC.HHN. ML:1.4 6.285E-5 0.44 AML other m 2020-01-03T05:03:26.39
IV.OSSC.HHE. ML:1.1 2.865E-5 0.18 AML other m 2020-01-03T05:03:27.37
IV.OSSC.HHN. ML:1.2 3.345E-5 0.68 AML other m 2020-01-03T05:03:28.70
IV.SEI.HHN. ML:1.9 0.0001405 0.36 AML other m 2020-01-03T05:03:33.79
IV.SEI.HHE. ML:1.7 8.01E-5 0.44 AML other m 2020-01-03T05:03:34.56
GU.GRAM.HHE. ML:2 0.000112 0.32 AML other m 2020-01-03T05:03:40.76
GU.GRAM.HHN. ML:1.9 8.415E-5 0.32 AML other m 2020-01-03T05:03:42.28
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