Earthquake with magnitude of ML 1.1 on date 22-11-2019 and time 22:46:28 (UTC) in region 2 km N Pieve a Nievole (PT)

A magnitude ML 1.1 earthquake occured in region: 2 km N Pieve a Nievole (PT), on

  • 22-11-2019 22:46:28 (UTC)
  • 22-11-2019 23:46:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9, 10.8 at 11 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
Pieve a Nievole PT 2 9266 9266
Montecatini-Terme PT 3 20409 29675
Serravalle Pistoiese PT 3 11659 41334
Monsummano Terme PT 3 21338 62672
Massa e Cozzile PT 5 7983 70655
Marliana PT 5 3210 73865
Buggiano PT 6 8825 82690
Uzzano PT 7 5770 88460
Ponte Buggianese PT 7 8804 97264
Pescia PT 9 19644 116908
Chiesina Uzzanese PT 9 4552 121460
Larciano PT 10 6394 127854
Pistoia PT 10 90315 218169
Montecarlo LU 12 4428 222597
Lamporecchio PT 12 7508 230105
Villa Basilica LU 13 1633 231738
Altopascio LU 13 15481 247219
Piteglio PT 15 1683 248902
Quarrata PT 16 26190 275092
Porcari LU 16 8845 283937
Vinci FI 16 14604 298541
Cerreto Guidi FI 17 10870 309411
Agliana PT 17 17525 326936
San Marcello Pistoiese PT 18 6416 333352
Montale PT 19 10737 344089
Capannori LU 19 46252 390341
Fucecchio FI 19 23618 413959
Montemurlo PO 20 18456 432415

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km W of Pistoia (90315 inhabitants)
24 Km W of Prato (191150 inhabitants)
24 Km E of Lucca (89046 inhabitants)
35 Km W of Scandicci (50609 inhabitants)
38 Km NE of Pisa (89158 inhabitants)
39 Km W of Firenze (382808 inhabitants)
44 Km E of Viareggio (62467 inhabitants)
55 Km E of Massa (69479 inhabitants)
55 Km NE of Livorno (159219 inhabitants)
60 Km E of Carrara (63133 inhabitants)
77 Km NW of Siena (53903 inhabitants)
79 Km SW of Bologna (386663 inhabitants)
81 Km E of La Spezia (93959 inhabitants)
84 Km S of Modena (184973 inhabitants)
89 Km SW of Imola (69797 inhabitants)
90 Km S of Reggio nell'Emilia (171345 inhabitants)
97 Km W of Faenza (58541 inhabitants)
99 Km S of Carpi (70699 inhabitants)
100 Km W of Arezzo (99543 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 1.1 2019-11-22
22:46:28
43.9 10.8 11 2019-11-22
22:51:27
Sala Sismica INGV-Roma 73970201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-22 22:46:28 ± 0.1
Latitude 43.90 ± 0.01
Longitude 10.80 ± 0.01
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73970201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 680
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.15019
Epicentral distance of station farthest from the epicenter (degree) 0.29498
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73970201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-22 22:51:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOCL.EHZ. 2019-11-22T22:46:40.04 0.3 undecidable manual S 69 0.295 50 0.01 79
IV.PII.HHZ. 2019-11-22T22:46:38.70 0.3 undecidable manual S 228 0.2644 50 -0.42 73
IV.MPPT.EHZ. 2019-11-22T22:46:37.56 0.3 undecidable manual S 74 0.2185 50 -0.19 78
IV.CRMI.HHE. 2019-11-22T22:46:36.03 0.3 undecidable manual S 128 0.1655 50 -0.17 79
IV.PII.HHZ. 2019-11-22T22:46:35.08 0.1 positive manual P 228 0.2644 50 0.31 100
GU.POPM.HHZ. 2019-11-22T22:46:35.45 0.3 undecidable manual S 349 0.1502 50 -0.27 77
IV.MOCL.EHZ. 2019-11-22T22:46:35.46 1.0 undecidable manual P 69 0.295 50 0.17 26
IV.MPPT.EHZ. 2019-11-22T22:46:34.06 0.6 undecidable manual P 74 0.2185 50 0.09 53
GU.POPM.HHZ. 2019-11-22T22:46:33.06 0.3 undecidable manual P 349 0.1502 50 0.26 78
IV.CRMI.HHE. 2019-11-22T22:46:33.28 0.3 undecidable manual P 128 0.1655 50 0.2 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHE. ML:1.2 0.00013318465 0.2688 AML other m 2019-11-22T22:46:36.06
GU.POPM.HHN. ML:1.3 0.00016173999 0.0768 AML other m 2019-11-22T22:46:35.99
IV.MPPT.EHE. ML:0.8 3.36232E-5 0.1152 AML other m 2019-11-22T22:46:37.85
IV.MPPT.EHN. ML:1.2 9.249022E-5 0.1408 AML other m 2019-11-22T22:46:38.39
IV.PII.HHE. ML:1 5.3863585E-5 0.2432 AML other m 2019-11-22T22:46:38.92
IV.PII.HHN. ML:1 5.3238455E-5 0.2688 AML other m 2019-11-22T22:46:39.07
IV.MOCL.EHE. ML:1 4.298373E-5 0.1408 AML other m 2019-11-22T22:46:41.10
IV.MOCL.EHN. ML:1.1 5.239802E-5 0.1408 AML other m 2019-11-22T22:46:40.88
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