Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 05-10-2021 and time 02:43:20 (Italy) in region 4 km SE Corte Brugnatella (PC)

A magnitude ML 2.0 earthquake occured in region: 4 km SE Corte Brugnatella (PC), on

  • 05-10-2021 00:43:20 (UTC)
  • 05-10-2021 02:43:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6870, 9.4100 at 8 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Corte Brugnatella PC 4 586 586
Cerignale PC 5 127 713
Coli PC 6 879 1592
Ferriere PC 8 1294 2886
Bobbio PC 9 3577 6463
Ottone PC 9 516 6979
Zerba PC 10 77 7056
Brallo di Pregola PV 12 599 7655
Gorreto GE 13 97 7752
Farini PC 13 1290 9042
Santo Stefano d'Aveto GE 16 1126 10168
Rovegno GE 16 554 10722
Menconico PV 16 360 11082
Santa Margherita di Staffora PV 16 473 11555
Fontanigorda GE 18 277 11832
Rezzoaglio GE 18 995 12827
Romagnese PV 18 687 13514
Bettola PC 19 2828 16342
Fascia GE 19 81 16423
Carrega Ligure AL 20 84 16507

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km SW of Piacenza (102191 inhabitants)
49 Km NE of Genova (586655 inhabitants)
59 Km SE of Pavia (72576 inhabitants)
68 Km E of Alessandria (93943 inhabitants)
69 Km SW of Cremona (71901 inhabitants)
73 Km NW of La Spezia (93959 inhabitants)
74 Km W of Parma (192836 inhabitants)
83 Km SE of Vigevano (63310 inhabitants)
85 Km E of Savona (61345 inhabitants)
87 Km NW of Carrara (63133 inhabitants)
89 Km S of Milano (1345851 inhabitants)
93 Km NW of Massa (69479 inhabitants)
95 Km S of Sesto San Giovanni (81608 inhabitants)
97 Km W of Reggio nell'Emilia (171345 inhabitants)
98 Km E of Asti (76202 inhabitants)
98 Km SE of Rho (50434 inhabitants)
98 Km S of Cinisello Balsamo (75078 inhabitants)
101 Km S of Monza (122671 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 2.0 2021-10-05
00:43:20		 44.6868 9.4103 9 2022-03-30
13:04:32		 Bollettino Sismico Italiano INGV 100226851
Reviewed
Rev100 		ML 2.0 2021-10-05
00:43:20		 44.678 9.4232 8 2021-10-05
00:54:04		 Sala Sismica INGV-Roma 96224721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-05 00:43:20 ± 0.08
Latitude 44.6868 ± 0.0054
Longitude 9.4103 ± 0.0063
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100226851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 649
Semi-minor axis of confidence ellipse (meter) 331
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 1.31301
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 100226851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-27 10:49:49

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 96224721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-05 00:54:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.MGRO.HHE. 2021-10-05T00:43:44.40 0.3 undecidable manual P 241 145.743 50 0.1 57
GU.GBOS.HHE. 2021-10-05T00:43:42.87 0.3 undecidable manual P 249 133.7661 50 0.42 55
GU.RORO.HHE. 2021-10-05T00:43:41.30 0.3 undecidable manual P 240 124.0869 50 0.34 57
GU.CANO.HHE. 2021-10-05T00:43:38.83 0.3 undecidable manual P 241 107.0151 50 0.5 57
GU.GRAM.HHZ. 2021-10-05T00:43:38.10 0.3 undecidable manual S 113 56.0994 50 0 70
IV.QLNO.HHE. 2021-10-05T00:43:36.49 0.6 undecidable manual P 245 93.3399 50 0.28 41
GU.GENL.EHN. 2021-10-05T00:43:35.21 0.3 undecidable manual S 228 46.7199 50 -0.39 66
IT.GNV.HGZ. 2021-10-05T00:43:35.40 0.3 undecidable manual S 233 47.2194 50 -0.32 67
IV.PCN.EHZ. 2021-10-05T00:43:35.60 0.6 undecidable manual S 32 45.9207 50 0.24 45
GU.RNCA.HHZ. 2021-10-05T00:43:34.40 0.3 undecidable manual S 237 43.4232 50 -0.32 67
IV.MSSA.HHZ. 2021-10-05T00:43:34.60 0.3 undecidable manual S 168 42.0246 50 0.28 68
GU.PCP.HHE. 2021-10-05T00:43:32.51 0.6 undecidable manual P 257 70.1742 50 -0.14 44
GU.GRAM.HHZ. 2021-10-05T00:43:30.55 0.3 undecidable manual P 113 56.0994 50 0.07 69
GU.GENL.EHN. 2021-10-05T00:43:29.35 0.6 undecidable manual P 228 46.7199 50 0.31 45
GU.RNCA.HHZ. 2021-10-05T00:43:28.27 0.1 undecidable manual P 237 43.4232 50 -0.26 91
IV.SARZ.HNZ. 2021-10-05T00:43:28.95 0.3 undecidable manual P 297 43.9227 50 0.35 67
IV.PCN.EHZ. 2021-10-05T00:43:28.43 0.6 undecidable manual P 32 45.9207 50 -0.47 43
IT.GNV.HGZ. 2021-10-05T00:43:28.92 0.1 undecidable manual P 233 47.2194 50 -0.19 46
IV.MSSA.HHZ. 2021-10-05T00:43:27.94 0.3 undecidable manual P 168 42.0246 50 -0.36 67
GU.GORR.HHZ. 2021-10-05T00:43:25.50 0.3 undecidable manual S 226 12.876 123 0.08 75
IV.BOB.HHZ. 2021-10-05T00:43:24.30 0.3 undecidable manual S 18 9.4794 132 -0.18 73
GU.GORR.HHZ. 2021-10-05T00:43:23.22 0.1 positive manual P 226 12.876 123 0.06 100
IV.BOB.HHZ. 2021-10-05T00:43:22.54 0.1 positive manual P 18 9.4794 132 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BOB.HHE. ML:2.4 0.00375 0.2 AML other m 2021-10-05T00:43:24.50
IV.BOB.HHN. ML:2.1 0.001970735 0.24 AML other m 2021-10-05T00:43:24.43
GU.GORR.HHN. ML:1.9 0.0009274999999999999 0.16 AML other m 2021-10-05T00:43:25.73
GU.GORR.HHE. ML:2.1 0.0013599999999999999 0.22 AML other m 2021-10-05T00:43:25.55
GU.GRAM.HHE. ML:1.8 0.000131 0.22 AML other m 2021-10-05T00:43:39.83
GU.GRAM.HHN. ML:1.8 0.00015214065000000002 0.44 AML other m 2021-10-05T00:43:40.61
IV.BOB.HNE. ML:2.4 0.003603627 0.18 AML other m 2021-10-05T00:43:24.50
IV.BOB.HNN. ML:2.1 0.0017587850000000001 0.26 AML other m 2021-10-05T00:43:24.43
GU.RNCA.HHE. ML:1.7 0.0001567372 1.1 AML other m 2021-10-05T00:43:35.52
GU.RNCA.HHN. ML:1.6 0.0001279036 0.36 AML other m 2021-10-05T00:43:34.16
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
Waveforms Seismic signals in miniseed + resp format Download