Earthquake with magnitude of ML 1.7 on date 17-01-2021 and time 01:54:46 (Italy) in region 3 km E Pistoia (PT)

A magnitude ML 1.7 earthquake occured in region: 3 km E Pistoia (PT), on

  • 17-01-2021 00:54:46 (UTC)
  • 17-01-2021 01:54:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.94, 10.96 at 50 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
Pistoia PT 3 90315 90315
Montale PT 5 10737 101052
Agliana PT 5 17525 118577
Montemurlo PO 6 18456 137033
Quarrata PT 10 26190 163223
Serravalle Pistoiese PT 11 11659 174882
Prato PO 13 191150 366032
Monsummano Terme PT 14 21338 387370
Vaiano PO 14 9895 397265
Larciano PT 14 6394 403659
Lamporecchio PT 14 7508 411167
Carmignano PO 14 14450 425617
Pieve a Nievole PT 15 9266 434883
Marliana PT 15 3210 438093
Poggio a Caiano PO 15 10007 448100
Cantagallo PO 16 3105 451205
Montecatini-Terme PT 16 20409 471614
Vinci FI 17 14604 486218
Massa e Cozzile PT 18 7983 494201
Calenzano FI 18 17489 511690
Piteglio PT 19 1683 513373
San Marcello Pistoiese PT 19 6416 519789
Sambuca Pistoiese PT 19 1626 521415
Campi Bisenzio FI 19 46166 567581
Buggiano PT 20 8825 576406
Ponte Buggianese PT 20 8804 585210

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km E of Pistoia (90315 inhabitants)
13 Km W of Prato (191150 inhabitants)
27 Km NW of Scandicci (50609 inhabitants)
30 Km NW of Firenze (382808 inhabitants)
38 Km E of Lucca (89046 inhabitants)
51 Km E of Pisa (89158 inhabitants)
57 Km E of Viareggio (62467 inhabitants)
66 Km E of Massa (69479 inhabitants)
67 Km NE of Livorno (159219 inhabitants)
69 Km SW of Bologna (386663 inhabitants)
71 Km E of Carrara (63133 inhabitants)
75 Km NW of Siena (53903 inhabitants)
76 Km SW of Imola (69797 inhabitants)
79 Km S of Modena (184973 inhabitants)
83 Km W of Faenza (58541 inhabitants)
89 Km SE of Reggio nell'Emilia (171345 inhabitants)
91 Km NW of Arezzo (99543 inhabitants)
92 Km W of Forlì (117913 inhabitants)
93 Km E of La Spezia (93959 inhabitants)
94 Km S of Carpi (70699 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 1.7 2021-01-17
00:54:46
43.94 10.96 50 2021-01-17
01:04:05
Sala Sismica INGV-Roma 86314961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 00:54:46 ± 0.25
Latitude 43.94 ± 0.02
Longitude 10.96 ± 0.01
Depth (km) 50 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86314961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1429
Semi-minor axis of confidence ellipse (meter) 1366
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 1430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.78151
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 86314961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 01:04:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SALB.HHZ. 2021-01-17T00:56:11.85 3.0 undecidable manual Pn 4.08 0
IV.MTMR.EHZ. 2021-01-17T00:55:53.85 3.0 undecidable manual Pn 6.11 0
ST.VARA.EHZ. 2021-01-17T00:55:33.97 3.0 undecidable manual Sn -1.87 0
SI.KOSI.HHZ. 2021-01-17T00:55:22.84 3.0 positive manual Pn 0.65 0
IV.STAL.HHZ. 2021-01-17T00:55:22.83 3.0 negative manual Pn -0.69 0
ST.OZOL.EHZ. 2021-01-17T00:55:22.09 3.0 positive manual Pn 0.92 0
IV.CTI.HHZ. 2021-01-17T00:55:17.09 3.0 undecidable manual Pn -0.02 0
ST.RONC.EHZ. 2021-01-17T00:55:16.14 3.0 negative manual Pn 0.5 0
ST.PANI.EHZ. 2021-01-17T00:55:16.72 3.0 positive manual Pn 0.13 0
SI.LUSI.HHZ. 2021-01-17T00:55:15.01 3.0 positive manual Pn -0.14 0
IV.ZONE.HHZ. 2021-01-17T00:55:14.24 3.0 undecidable manual Pn 0.32 0
ST.DOSS.HHZ. 2021-01-17T00:55:13.93 3.0 positive manual Pn -0.25 0
ST.VARA.EHZ. 2021-01-17T00:55:13.27 3.0 negative manual Pn -0.1 0
IV.MAGA.HHZ. 2021-01-17T00:55:12.86 3.0 negative manual Pn -0.05 0
IV.TEOL.HHZ. 2021-01-17T00:55:08.07 3.0 positive manual Pn -0.3 0
IV.CELB.HHZ. 2021-01-17T00:55:08.29 3.0 positive manual Pn 0.05 0
IV.CASP.HHZ. 2021-01-17T00:55:06.15 3.0 undecidable manual Pn -0.03 0
GU.CARD.HHZ. 2021-01-17T00:55:03.07 0.1 undecidable manual S 285 0.3561 132 -0.3 91
IV.PLMA.HHZ. 2021-01-17T00:55:03.14 3.0 positive manual Pg 2.56 0
IV.SEI.HHZ. 2021-01-17T00:55:02.25 0.3 undecidable manual S 67 0.3094 137 -0.33 68
IV.BDI.HHZ. 2021-01-17T00:55:02.28 0.1 undecidable manual S 296 0.2914 139 -0.02 97
IV.CRE.HHZ. 2021-01-17T00:55:01.92 0.3 undecidable manual P 114 0.7815 105 0.61 57
GU.POPM.HHZ. 2021-01-17T00:55:01.18 0.1 undecidable manual S 307 0.1826 153 0.34 93
IV.MPPT.EHZ. 2021-01-17T00:55:00.31 0.3 undecidable manual S 77 0.0953 165 0.22 73
IV.MOCL.EHZ. 2021-01-17T00:55:00.98 0.3 undecidable manual S 66 0.1727 154 0.25 72
IV.BRIS.HHZ. 2021-01-17T00:54:59.78 0.3 undecidable manual P 63 0.6466 111 0.26 65
GU.GSCL.HHE. 2021-01-17T00:54:58.41 0.3 undecidable manual P 327 0.4928 120 0.8 56
IV.ZCCA.HNE. 2021-01-17T00:54:57.54 0.6 undecidable manual P 2 0.4146 127 0.83 37
IV.LMD.HHZ. 2021-01-17T00:54:57.58 0.1 undecidable manual P 75 0.5549 116 -0.78 75
IV.PII.HHZ. 2021-01-17T00:54:56.55 0.1 undecidable manual P 236 0.3804 130 0.22 92
IV.RUFI.EHZ. 2021-01-17T00:54:56.24 0.1 undecidable manual P 104 0.4074 127 -0.38 88
IV.RONT.HHZ. 2021-01-17T00:54:55.69 0.3 undecidable manual P 80 0.3444 133 -0.27 69
IT.FIE.HGN. 2021-01-17T00:54:55.42 0.1 undecidable manual P 118 0.2725 141 0.13 96
IV.BDI.HHZ. 2021-01-17T00:54:55.13 0.1 undecidable manual P 296 0.2914 139 -0.33 92
IV.SEI.HHZ. 2021-01-17T00:54:55.27 0.3 undecidable manual P 67 0.3094 137 -0.35 68
IV.FIR.HNE. 2021-01-17T00:54:55.42 0.1 undecidable manual P 127 0.2662 142 0.19 95
GU.CARD.HHZ. 2021-01-17T00:54:55.65 0.1 undecidable manual P 285 0.3561 132 -0.43 89
IV.MOCL.EHZ. 2021-01-17T00:54:54.57 0.1 undecidable manual P 66 0.1727 154 0.02 100
IV.MPPT.EHZ. 2021-01-17T00:54:54.26 0.1 undecidable manual P 77 0.0953 165 0.08 100
GU.POPM.HHZ. 2021-01-17T00:54:54.58 0.1 undecidable manual P 307 0.1826 153 -0.03 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPPT.EHE. ML:1.5 7.675E-5 0.26 AML other m 2021-01-17T00:55:01.16
IV.MOCL.EHE. ML:1.9 0.000187 0.16 AML other m 2021-01-17T00:55:01.52
IV.MPPT.EHN. ML:1.3 5.515E-5 0.68 AML other m 2021-01-17T00:55:01.47
IV.MOCL.EHN. ML:1.8 0.0001435 0.2 AML other m 2021-01-17T00:55:01.51
GU.POPM.HHN. ML:2 0.0002155 0.12 AML other m 2021-01-17T00:55:01.75
GU.POPM.HHE. ML:1.6 0.00010095 0.9 AML other m 2021-01-17T00:55:02.61
IV.BDI.HHE. ML:1.6 9.135E-5 0.1 AML other m 2021-01-17T00:55:02.77
IV.BDI.HHN. ML:1.5 6.26E-5 0.2 AML other m 2021-01-17T00:55:03.10
GU.CARD.HHN. ML:1.7 0.00010425 0.28 AML other m 2021-01-17T00:55:03.64
IV.RONT.HHE. ML:1.6 7.055E-5 0.4 AML other m 2021-01-17T00:55:04.01
GU.CARD.HHE. ML:1.6 8.515E-5 0.54 AML other m 2021-01-17T00:55:04.45
IV.SEI.HHE. ML:1.4 5.56E-5 0.88 AML other m 2021-01-17T00:55:04.98
IV.PII.HHE. ML:2 0.0001795 0.12 AML other m 2021-01-17T00:55:04.67
IV.PII.HHN. ML:2.1 0.000218 1.66 AML other m 2021-01-17T00:55:05.91
IV.LMD.HHE. ML:1.4 3.375E-5 0.42 AML other m 2021-01-17T00:55:05.55
IV.RONT.HHN. ML:1.7 8.935E-5 0.42 AML other m 2021-01-17T00:55:07.28
IV.LMD.HHN. ML:1.2 2.605E-5 0.94 AML other m 2021-01-17T00:55:07.92
SI.LUSI.HHE. ML:2 2.305E-5 0.58 AML other m 2021-01-17T00:55:38.35
SI.LUSI.HHN. ML:2.1 2.98E-5 0.94 AML other m 2021-01-17T00:55:40.57
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