Earthquake with magnitude of ML 1.6 on date 05-10-2021 and time 11:43:51 (UTC) in region 9 km W Frassinoro (MO)

A magnitude ML 1.6 earthquake occured in region: 9 km W Frassinoro (MO), on

  • 05-10-2021 11:43:51 (UTC)
  • 05-10-2021 13:43:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2780, 10.4610 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Frassinoro MO 9 1926 1926
Villa Minozzo RE 10 3750 5676
Toano RE 14 4463 10139
Villa Collemandina LU 14 1334 11473
Sillano Giuncugnano LU 14 1085 12558
Pievepelago MO 15 2222 14780
Castiglione di Garfagnana LU 15 1818 16598
Ventasso RE 15 4295 20893
San Romano in Garfagnana LU 15 1410 22303
Palagano MO 16 2194 24497
Montefiorino MO 16 2203 26700
Riolunato MO 16 712 27412
Piazza al Serchio LU 17 2367 29779
Camporgiano LU 17 2176 31955
Pieve Fosciana LU 17 2414 34369
Fosciandora LU 18 602 34971
Castelnovo ne' Monti RE 18 10465 45436
Fiumalbo MO 18 1280 46716
Castelnuovo di Garfagnana LU 19 5950 52666

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Carrara (63133 inhabitants)
37 Km NE of Massa (69479 inhabitants)
48 Km N of Lucca (89046 inhabitants)
49 Km NE of Viareggio (62467 inhabitants)
49 Km S of Reggio nell'Emilia (171345 inhabitants)
53 Km NW of Pistoia (90315 inhabitants)
54 Km E of La Spezia (93959 inhabitants)
55 Km SW of Modena (184973 inhabitants)
59 Km S of Parma (192836 inhabitants)
63 Km N of Pisa (89158 inhabitants)
66 Km SW of Carpi (70699 inhabitants)
67 Km NW of Prato (191150 inhabitants)
74 Km W of Bologna (386663 inhabitants)
82 Km N of Livorno (159219 inhabitants)
82 Km NW of Scandicci (50609 inhabitants)
85 Km NW of Firenze (382808 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.6 2021-10-05
11:43:51
44.2782 10.4613 11 2022-03-30
13:04:33
Bollettino Sismico Italiano INGV 100463671
Reviewed
Rev100
ML 1.6 2021-10-05
11:43:51
44.2803 10.4615 11 2021-10-05
12:19:29
Sala Sismica INGV-Roma 96255991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-05 11:43:51 ± 0.09
Latitude 44.2782 ± 0.0054
Longitude 10.4613 ± 0.0063
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100463671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 543
Semi-minor axis of confidence ellipse (meter) 499
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.10342
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 100463671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-01 11:29:00

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 96255991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-05 12:19:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2021-10-05T11:44:04.69 0.6 undecidable manual S 307 39.2274 50 0.37 45
GU.MAIM.HHZ. 2021-10-05T11:44:04.38 0.3 undecidable manual S 177 40.5261 50 -0.29 69
GU.POPM.HHZ. 2021-10-05T11:44:03.44 0.3 undecidable manual S 138 34.9428 50 0.27 70
GU.CARD.HHZ. 2021-10-05T11:44:01.41 0.3 undecidable manual S 177 27.9498 50 0.09 73
GU.FIVI.HNZ. 2021-10-05T11:44:00.97 0.3 undecidable manual S 261 26.9508 50 -0.05 74
IV.BDI.HHZ. 2021-10-05T11:44:00.46 0.3 undecidable manual S 156 26.1516 50 -0.36 70
GU.EQUI.HHE. 2021-10-05T11:44:00.81 0.3 undecidable manual S 243 27.4503 50 -0.37 69
GU.POPM.HHZ. 2021-10-05T11:43:58.42 0.3 undecidable manual P 138 34.9428 50 0.29 70
GU.GRAM.HHZ. 2021-10-05T11:43:58.42 0.6 undecidable manual P 307 39.2274 50 -0.38 45
GU.MAIM.HHZ. 2021-10-05T11:43:58.85 0.6 undecidable manual P 177 40.5261 50 -0.15 47
GU.CARD.HHZ. 2021-10-05T11:43:57.07 0.3 undecidable manual P 177 27.9498 50 0.01 75
GU.FIVI.HNZ. 2021-10-05T11:43:57.19 0.3 undecidable manual P 261 26.9508 50 0.3 70
IV.BDI.HHZ. 2021-10-05T11:43:56.93 0.1 undecidable manual P 156 26.1516 50 0.15 97
GU.EQUI.HHE. 2021-10-05T11:43:56.95 0.3 undecidable manual P 243 27.4503 50 -0.04 74
GU.SARM.EHE. 2021-10-05T11:43:56.55 0.3 undecidable manual S 205 11.4774 132 -0.11 75
GU.GSCL.HHZ. 2021-10-05T11:43:56.57 0.3 undecidable manual S 51 12.876 129 -0.45 70
GU.GSCL.HHZ. 2021-10-05T11:43:54.70 0.1 undecidable manual P 51 12.876 129 0.11 100
GU.SARM.EHE. 2021-10-05T11:43:54.70 0.1 positive manual P 205 11.4774 132 0.32 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHE. ML:1.7 0.0005515 0.18 AML other m 2021-10-05T11:43:56.89
GU.GSCL.HHN. ML:1.8 0.0007733833 1.84 AML other m 2021-10-05T11:43:56.00
IV.BDI.HNN. ML:1.4 0.00015250205 1.7952 AML other m 2021-10-05T11:44:00.05
IV.BDI.HHE. ML:1.5 0.0001807105 1.7824 AML other m 2021-10-05T11:44:01.98
IV.BDI.HHN. ML:1.5 0.000175593 0.16 AML other m 2021-10-05T11:44:01.04
IV.BDI.HNE. ML:1.5 0.00016618940000000002 0.1664 AML other m 2021-10-05T11:44:01.53
GU.CARD.HHE. ML:1.8 0.0003255 0.12 AML other m 2021-10-05T11:44:01.69
GU.CARD.HHN. ML:1.4 0.00011625859999999998 0.064 AML other m 2021-10-05T11:44:02.09
GU.POPM.HHE. ML:1.8 0.00024522 0.1408 AML other m 2021-10-05T11:44:04.55
GU.POPM.HHN. ML:1.8 0.00024495485 0.1216 AML other m 2021-10-05T11:44:04.67
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download