Earthquake with magnitude of ML 1.5 on date 21-01-2021 and time 21:50:31 (Italy) in region 7 km W Abetone (PT)

A magnitude ML 1.5 earthquake occured in region: 7 km W Abetone (PT), on

  • 21-01-2021 20:50:31 (UTC)
  • 21-01-2021 21:50:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.14, 10.58 at 14 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
Abetone PT 7 621 621
Fiumalbo MO 7 1280 1901
Pievepelago MO 8 2222 4123
Coreglia Antelminelli LU 9 5215 9338
Fosciandora LU 11 602 9940
Barga LU 11 10034 19974
Riolunato MO 12 712 20686
Pieve Fosciana LU 14 2414 23100
Castiglione di Garfagnana LU 14 1818 24918
Castelnuovo di Garfagnana LU 14 5950 30868
Bagni di Lucca LU 14 6161 37029
Cutigliano PT 14 1488 38517
Gallicano LU 15 3807 42324
Molazzana LU 15 1043 43367
Villa Collemandina LU 15 1334 44701
Montecreto MO 17 940 45641
Frassinoro MO 18 1926 47567
Borgo a Mozzano LU 18 6994 54561
Sestola MO 18 2508 57069
Fanano MO 19 2989 60058
Fabbriche di Vergemoli LU 19 768 60826
San Marcello Pistoiese PT 19 6416 67242
Piteglio PT 19 1683 68925
San Romano in Garfagnana LU 19 1410 70335

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of Lucca (89046 inhabitants)
35 Km NW of Pistoia (90315 inhabitants)
37 Km E of Massa (69479 inhabitants)
39 Km E of Carrara (63133 inhabitants)
40 Km NE of Viareggio (62467 inhabitants)
49 Km NE of Pisa (89158 inhabitants)
50 Km NW of Prato (191150 inhabitants)
60 Km E of La Spezia (93959 inhabitants)
62 Km S of Reggio nell'Emilia (171345 inhabitants)
63 Km SW of Modena (184973 inhabitants)
64 Km NW of Scandicci (50609 inhabitants)
68 Km NW of Firenze (382808 inhabitants)
69 Km NE of Livorno (159219 inhabitants)
72 Km SW of Bologna (386663 inhabitants)
76 Km SW of Carpi (70699 inhabitants)
77 Km S of Parma (192836 inhabitants)
93 Km W of Imola (69797 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 1.5 2021-01-21
20:50:31
44.14 10.58 14 2021-01-21
20:56:33
Sala Sismica INGV-Roma 86439571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-21 20:50:31 ± 0.11
Latitude 44.14 ± 0.00
Longitude 10.58 ± 0.01
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86439571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 863
Semi-minor axis of confidence ellipse (meter) 493
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41908
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 86439571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-21 20:56:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-01-21T20:51:53.23 3.0 undecidable manual Sg 12.74 0
IX.STN3.HHZ.02 2021-01-21T20:51:44.60 3.0 positive manual Pn 0.26 0
IV.GAVE.EHZ. 2021-01-21T20:51:33.00 3.0 undecidable manual Sg 3.38 0
IV.CSP1.EHZ. 2021-01-21T20:51:28.53 3.0 undecidable manual Sn 0.42 0
TV.SF04.EHZ. 2021-01-21T20:51:12.71 3.0 undecidable manual Sn -0.5 0
IV.GAVE.EHZ. 2021-01-21T20:51:08.11 3.0 undecidable manual Pg 4.84 0
ST.CARE.EHZ. 2021-01-21T20:51:05.11 3.0 undecidable manual Pn 0.61 0
IV.APEC.HHZ. 2021-01-21T20:50:55.85 3.0 undecidable manual Pg 3.41 0
IV.CPGN.EHZ. 2021-01-21T20:50:47.19 3.0 undecidable manual Pn -3.07 0
IV.PII.HHZ. 2021-01-21T20:50:45.51 0.6 undecidable manual S 186 0.4191 96 -0.58 41
GU.MAIM.HHZ. 2021-01-21T20:50:40.51 0.6 undecidable manual S 197 0.2338 104 -0.18 48
IV.PII.HHZ. 2021-01-21T20:50:39.99 0.1 undecidable manual P 186 0.4191 96 0.2 91
GU.GSCL.HHZ. 2021-01-21T20:50:39.73 0.6 undecidable manual S 1 0.2113 106 -0.31 46
GU.POPM.HHZ. 2021-01-21T20:50:38.36 0.6 undecidable manual S 127 0.1556 116 -0.12 49
GU.CARD.HHZ. 2021-01-21T20:50:37.92 0.6 undecidable manual S 213 0.134 122 -0.02 50
IV.BDI.HNN. 2021-01-21T20:50:36.67 0.6 undecidable manual S 174 0.0764 142 0.02 51
GU.GSCL.HHZ. 2021-01-21T20:50:36.31 0.1 undecidable manual P 1 0.2113 106 0.02 99
GU.MAIM.HHZ. 2021-01-21T20:50:36.83 0.1 undecidable manual P 197 0.2338 104 0.16 96
GU.POPM.HHZ. 2021-01-21T20:50:35.50 0.3 undecidable manual P 127 0.1556 116 0.1 74
GU.CARD.HHZ. 2021-01-21T20:50:35.10 0.6 undecidable manual P 213 0.134 122 0.02 50
IV.BDI.HNN. 2021-01-21T20:50:34.43 0.1 undecidable manual P 174 0.0764 142 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHN. ML:1.5 0.0002365 0.42 AML other m 2021-01-21T20:50:38.04
GU.CARD.HHE. ML:1.7 0.000385 0.14 AML other m 2021-01-21T20:50:38.20
GU.POPM.HHN. ML:1.4 0.0001735 0.3 AML other m 2021-01-21T20:50:38.58
GU.POPM.HHE. ML:1.6 0.0002815 0.4 AML other m 2021-01-21T20:50:38.67
GU.GSCL.HHE. ML:1.8 0.0003455 0.22 AML other m 2021-01-21T20:50:39.99
GU.GSCL.HHN. ML:1.3 0.000105 0.44 AML other m 2021-01-21T20:50:40.92
IV.PII.HHN. ML:1.6 0.00010015 0.16 AML other m 2021-01-21T20:50:46.88
IV.PII.HHE. ML:1.6 0.0001075 1.06 AML other m 2021-01-21T20:50:46.89
ST.CARE.EHN. ML:4 0.001855 0.9 AML other m 2021-01-21T20:51:09.63
ST.CARE.EHE. ML:3.8 0.001195 1 AML other m 2021-01-21T20:51:11.64
ST.CARE.HNN. ML:3.4 0.00043095 0.68 AML other m 2021-01-21T20:51:30.01
ST.CARE.HNE. ML:3.6 0.00075995 1.02 AML other m 2021-01-21T20:51:33.99
IV.GAVE.EHE. ML:3.2 0.000281 1.52 AML other m 2021-01-21T20:51:33.11
IV.GAVE.EHN. ML:3.3 0.0003645 0.64 AML other m 2021-01-21T20:51:38.58
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