Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 26-02-2021 and time 10:57:11 (UTC) in region 4 km SE Norcia (PG)

A magnitude ML 1.9 earthquake occured in region: 4 km SE Norcia (PG), on

  • 26-02-2021 10:57:11 (UTC)
  • 26-02-2021 11:57:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7640, 13.1170 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Norcia PG 4 4957 4957
Cascia PG 10 3217 8174
Accumoli RI 13 667 8841
Preci PG 14 724 9565
Arquata del Tronto AP 15 1178 10743
Castelsantangelo sul Nera MC 15 281 11024
Poggiodomo PG 16 117 11141
Cittareale RI 17 482 11623
Cerreto di Spoleto PG 18 1075 12698
Monteleone di Spoleto PG 18 599 13297
Visso MC 19 1107 14404
Montegallo AP 20 523 14927

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km W of Chieti (51815 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 1.9 2021-02-26
10:57:11		 42.764 13.1172 10 2021-07-12
16:55:01		 Bollettino Sismico Italiano INGV 87943391
Reviewed
Rev100 		ML 1.9 2021-02-26
10:57:11		 42.7608 13.1192 10 2021-02-26
11:04:58		 Sala Sismica INGV-Roma 87501421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-26 10:57:11 ± 0.05
Latitude 42.7640 ± 0.0027
Longitude 13.1172 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87943391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 272
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 82
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64751
Number of stations at which the event was observed 53
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 65
Type of magnitude ML
Reference to an origin 87943391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-09 12:37:24

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 52
Type of magnitude ML
Reference to an origin 87501421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-26 11:04:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.BLY.HHZ. 2021-02-26T10:58:46.72 3.0 undecidable manual Sn -1.29 0
OX.MPRI.HHZ. 2021-02-26T10:58:45.71 3.0 undecidable manual Sn -0.5 0
IV.CMDO.HHZ. 2021-02-26T10:58:42.68 3.0 undecidable manual Pg 12.94 0
MN.TRI.HHZ. 2021-02-26T10:58:41.05 3.0 undecidable manual Sg 6.98 0
IV.CROCE.HHZ. 2021-02-26T10:58:40.82 3.0 undecidable manual Pn 1.45 0
IV.EPZF.HHZ. 2021-02-26T10:58:39.49 3.0 undecidable manual Pg 12.65 0
CH.FUORN.HHZ. 2021-02-26T10:58:31.92 3.0 undecidable manual Pg 15.3 0
IV.NDIM.HNZ. 2021-02-26T10:58:27.05 3.0 undecidable manual Sn 0.74 0
IV.ERC.EHZ. 2021-02-26T10:58:22.36 3.0 undecidable manual Pn 0.62 0
IV.ZCCA.HHZ. 2021-02-26T10:58:16.60 3.0 undecidable manual Sn 1.02 0
IV.IFIL.HHZ. 2021-02-26T10:58:16.26 3.0 negative manual Pn 0 0
IV.ZONE.HHZ. 2021-02-26T10:58:15.78 3.0 undecidable manual Pg 8.31 0
IV.EUCT.HNZ. 2021-02-26T10:58:11.23 3.0 positive manual Pn 2.71 0
IV.OPPE.HNZ. 2021-02-26T10:58:07.35 3.0 undecidable manual Pg 10.7 0
IV.FIR.HHZ. 2021-02-26T10:58:06.38 3.0 undecidable manual Sg 3.7 0
IV.SCHR.EHZ. 2021-02-26T10:58:01.22 3.0 undecidable manual Pn -2.04 0
IV.VAGA.HHZ. 2021-02-26T10:57:59.29 3.0 undecidable manual Sn -0.52 0
IV.MTMR.EHZ. 2021-02-26T10:57:54.03 3.0 negative manual Pg 5.49 0
IV.ZCCA.HHZ. 2021-02-26T10:57:54.00 3.0 negative manual Pg 6.71 0
IV.MPAG.EHZ. 2021-02-26T10:57:42.94 3.0 undecidable manual S 0.04 0
IV.APEC.HHZ. 2021-02-26T10:57:42.60 3.0 undecidable manual S -1.65 0
IV.CRTC.HHZ. 2021-02-26T10:57:32.43 3.0 undecidable manual P 1.66 0
IV.EL6.EHZ. 2021-02-26T10:57:31.77 3.0 undecidable manual S 0.03 0
IV.ATCC.EHZ. 2021-02-26T10:57:30.65 0.6 undecidable manual S 320 60.6948 50 0.64 40
IV.FIAM.HHZ. 2021-02-26T10:57:28.64 1.0 undecidable manual S 180 55.0005 50 0.15 23
IV.CESX.HHZ. 2021-02-26T10:57:26.29 0.3 undecidable manual S 248 46.5201 50 0.05 71
IV.MGAB.HHZ. 2021-02-26T10:57:26.22 3.0 positive manual P 0.07 0
IT.GNU.HGE. 2021-02-26T10:57:26.31 0.3 undecidable manual S 276 44.7219 50 0.56 64
IV.MOMA.HHZ. 2021-02-26T10:57:26.27 0.3 undecidable manual S 276 44.7219 50 0.51 65
IV.SAP2.EHZ. 2021-02-26T10:57:26.40 0.3 undecidable manual S 32 43.4232 50 1 53
IV.TERO.HHZ. 2021-02-26T10:57:25.01 0.3 undecidable manual S 111 42.624 50 -0.18 70
IV.T0110.HHZ. 2021-02-26T10:57:25.06 3.0 positive manual P -0.41 0
IV.MF5.EHZ. 2021-02-26T10:57:24.52 0.6 undecidable manual S 48 37.3293 50 0.75 40
IV.MURB.HHZ. 2021-02-26T10:57:24.23 3.0 negative manual P -0.22 0
IV.VCEL.EHZ. 2021-02-26T10:57:24.11 0.1 undecidable manual P 125 71.8725 50 0.34 85
IV.PF6.EHN. 2021-02-26T10:57:24.78 0.3 undecidable manual S 9 41.9247 50 -0.22 69
IV.GUMA.HHZ. 2021-02-26T10:57:24.61 0.3 undecidable manual S 28 37.5291 50 0.77 59
IV.MML1.HNE. 2021-02-26T10:57:24.60 0.6 undecidable manual S 343 40.5261 50 -0.03 48
IV.CSP1.EHZ. 2021-02-26T10:57:23.73 0.3 undecidable manual S 11 37.0296 50 0.03 73
IV.CAMP.HHZ. 2021-02-26T10:57:22.63 0.6 undecidable manual S 137 34.743 50 -0.45 44
IV.EL6.EHZ. 2021-02-26T10:57:22.19 3.0 positive manual P -0.47 0
IV.ARRO.EHZ. 2021-02-26T10:57:22.95 0.1 undecidable manual S 235 35.2425 50 -0.27 93
IV.CESI.HHZ. 2021-02-26T10:57:22.14 0.1 undecidable manual S 327 31.8459 50 -0.16 95
IV.ATCC.EHZ. 2021-02-26T10:57:21.94 0.6 undecidable manual P 320 60.6948 50 -0.1 46
IV.RM33.EHZ. 2021-02-26T10:57:21.60 0.3 undecidable manual S 164 29.3484 50 -0.05 73
IV.FDMO.HHZ. 2021-02-26T10:57:21.49 0.1 undecidable manual S 355 30.3474 50 -0.41 90
IV.SMA1.EHZ. 2021-02-26T10:57:20.40 0.6 undecidable manual S 130 23.1546 114 0.45 45
IT.MTCL.HGZ. 2021-02-26T10:57:20.65 0.1 undecidable manual S 339 27.2505 50 -0.43 91
IV.CESX.HHZ. 2021-02-26T10:57:20.32 0.6 undecidable manual P 248 46.5201 50 0.45 44
IV.FIAM.HHZ. 2021-02-26T10:57:20.97 0.6 undecidable manual P 180 55.0005 50 -0.2 45
IV.MOMA.HHZ. 2021-02-26T10:57:19.49 0.1 undecidable manual P 276 44.7219 50 -0.1 94
IV.LNSS.HHZ. 2021-02-26T10:57:19.01 0.3 undecidable manual S 199 18.9699 118 0.37 70
IV.SAP2.EHZ. 2021-02-26T10:57:19.77 0.1 undecidable manual P 32 43.4232 50 0.38 89
IV.MTRA.EHZ. 2021-02-26T10:57:19.54 0.3 undecidable manual S 92 22.755 114 -0.29 71
IV.T1299.HNN. 2021-02-26T10:57:19.23 0.6 undecidable manual S 137 19.6692 118 0.35 47
IV.TERO.HHZ. 2021-02-26T10:57:19.03 0.3 undecidable manual P 111 42.624 50 -0.23 69
IT.GNU.HGE. 2021-02-26T10:57:19.77 0.3 undecidable manual P 276 44.7219 50 0.18 69
IV.MMO1.EHZ. 2021-02-26T10:57:19.54 0.3 undecidable manual S 49 22.755 114 -0.28 71
IV.FEMA.HNE. 2021-02-26T10:57:19.40 0.3 undecidable manual S 346 22.6551 114 -0.4 69
IV.CSP1.EHZ. 2021-02-26T10:57:18.25 0.1 undecidable manual P 11 37.0296 50 -0.15 94
IV.PF6.EHN. 2021-02-26T10:57:18.89 0.3 undecidable manual P 9 41.9247 50 -0.27 69
IV.GUMA.HHZ. 2021-02-26T10:57:18.63 0.1 undecidable manual P 28 37.5291 50 0.15 94
IV.MML1.HNE. 2021-02-26T10:57:18.75 0.3 undecidable manual P 343 40.5261 50 -0.19 70
IV.GAVE.EHZ. 2021-02-26T10:57:18.85 0.3 undecidable manual S 246 19.869 117 -0.07 74
IV.MF5.EHZ. 2021-02-26T10:57:18.79 0.1 undecidable manual P 48 37.3293 50 0.35 91
IV.MC2.EHZ. 2021-02-26T10:57:18.57 0.3 undecidable manual S 20 17.3715 121 0.4 70
IV.FDMO.HHZ. 2021-02-26T10:57:17.13 0.1 undecidable manual P 355 30.3474 50 -0.24 94
IV.CESI.HHZ. 2021-02-26T10:57:17.42 0.1 undecidable manual P 327 31.8459 50 -0.17 95
IV.CAMP.HHZ. 2021-02-26T10:57:17.75 0.1 undecidable manual P 137 34.743 50 -0.3 92
IV.ARRO.EHZ. 2021-02-26T10:57:17.96 0.1 undecidable manual P 235 35.2425 50 -0.16 95
IV.FEMA.HNE. 2021-02-26T10:57:16.07 0.3 undecidable manual P 346 22.6551 114 -0.08 74
IV.SMA1.EHZ. 2021-02-26T10:57:16.08 0.1 undecidable manual P 130 23.1546 114 -0.16 97
IT.MTCL.HGZ. 2021-02-26T10:57:16.68 0.3 undecidable manual P 339 27.2505 50 -0.21 71
IV.RM33.EHZ. 2021-02-26T10:57:16.96 0.3 undecidable manual P 164 29.3484 50 -0.26 70
IV.MTRA.EHZ. 2021-02-26T10:57:15.93 0.1 undecidable manual P 92 22.755 114 -0.24 95
IV.T1299.HNN. 2021-02-26T10:57:15.70 0.1 undecidable manual P 137 19.6692 118 0.08 99
IV.MC2.EHZ. 2021-02-26T10:57:15.33 0.1 undecidable manual P 20 17.3715 121 0.12 98
IV.MMO1.EHZ. 2021-02-26T10:57:15.96 0.1 undecidable manual P 49 22.755 114 -0.2 96
IV.NRCA.HHZ. 2021-02-26T10:57:15.68 0.3 undecidable manual S 358 7.6812 143 0.06 76
IV.LNSS.HHZ. 2021-02-26T10:57:15.51 0.1 undecidable manual P 199 18.9699 118 0.03 100
IV.GAVE.EHZ. 2021-02-26T10:57:15.66 0.3 undecidable manual P 246 19.869 117 0.02 75
IV.NRCA.HHZ. 2021-02-26T10:57:13.94 0.1 undecidable manual P 358 7.6812 143 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:2.4 0.001987324 0.2816 AML other m 2021-02-26T10:57:19.36
IV.LNSS.HHE. ML:2.3 0.0015388930000000002 0.1152 AML other m 2021-02-26T10:57:19.46
IV.LNSS.HHN. ML:2.1 0.0010865 0.2 AML other m 2021-02-26T10:57:19.52
IV.GAVE.EHE. ML:2.4 0.0019543455 0.1984 AML other m 2021-02-26T10:57:20.05
IV.GAVE.HNE. ML:2.4 0.001847552 0.128 AML other m 2021-02-26T10:57:19.56
IV.GAVE.HNN. ML:1.9 0.000561 1.8 AML other m 2021-02-26T10:57:20.96
IV.MTRA.EHE. ML:2.0 0.00065060735 0.1408 AML other m 2021-02-26T10:57:20.87
IV.MTRA.EHN. ML:1.9 0.0005914695999999999 0.16 AML other m 2021-02-26T10:57:20.44
IV.SMA1.EHE. ML:1.9 0.0005921315 0.1984 AML other m 2021-02-26T10:57:20.84
IV.SMA1.EHN. ML:2.0 0.0006915000000000001 0.3 AML other m 2021-02-26T10:57:21.16
IV.RM33.HNN. ML:2.0 0.00054063925 0.1344 AML other m 2021-02-26T10:57:22.08
IV.RM33.EHN. ML:2.0 0.0005184174 0.1408 AML other m 2021-02-26T10:57:22.08
IV.RM33.EHE. ML:2.0 0.00045152625000000003 0.096 AML other m 2021-02-26T10:57:22.13
IV.FDMO.HHN. ML:2.0 0.00044269979999999996 0.2816 AML other m 2021-02-26T10:57:22.39
IV.CESI.HHN. ML:2.2 0.0006863546999999999 0.2432 AML other m 2021-02-26T10:57:22.73
IV.RM33.HNE. ML:2.0 0.00043292255 0.1152 AML other m 2021-02-26T10:57:22.07
IV.CESI.HHE. ML:1.9 0.00037478109999999995 0.2176 AML other m 2021-02-26T10:57:22.35
IV.CAMP.HHE. ML:1.6 0.00016271740000000002 0.3584 AML other m 2021-02-26T10:57:23.28
IV.FDMO.HHE. ML:1.8 0.000306 0.22 AML other m 2021-02-26T10:57:23.77
IV.ARRO.EHE. ML:1.8 0.000265 1.8 AML other m 2021-02-26T10:57:23.94
IV.ARRO.EHN. ML:1.8 0.0002785 1.74 AML other m 2021-02-26T10:57:24.90
IV.CSP1.EHE. ML:2.1 0.00051750145 0.2368 AML other m 2021-02-26T10:57:24.20
IV.MF5.EHN. ML:1.7 0.00017754765 0.384 AML other m 2021-02-26T10:57:24.76
IV.GUMA.HHE. ML:2.0 0.00040300000000000004 0.32 AML other m 2021-02-26T10:57:24.77
IV.CSP1.EHN. ML:2.1 0.00047133245 0.1408 AML other m 2021-02-26T10:57:25.49
IV.TERO.HHN. ML:1.6 0.000141726675 0.0832 AML other m 2021-02-26T10:57:25.50
IV.TERO.HHE. ML:1.6 0.0001385 0.14 AML other m 2021-02-26T10:57:26.33
IV.CAMP.HHN. ML:1.6 0.0001525 0.62 AML other m 2021-02-26T10:57:26.15
IV.MF5.EHE. ML:1.6 0.00016661779999999998 0.2816 AML other m 2021-02-26T10:57:26.79
IV.MOMA.HHN. ML:1.9 0.00025186790000000006 0.1792 AML other m 2021-02-26T10:57:26.86
IV.MOMA.HNN. ML:1.9 0.0002462612 0.1664 AML other m 2021-02-26T10:57:26.86
IV.MOMA.HHE. ML:2.1 0.0003595 0.22 AML other m 2021-02-26T10:57:26.99
IV.MOMA.HNE. ML:2.0 0.0003215 0.2 AML other m 2021-02-26T10:57:26.99
IV.GUMA.HHN. ML:1.9 0.0002855 1.3 AML other m 2021-02-26T10:57:27.87
IV.SAP2.EHN. ML:0.0 0.0012047455 0.1216 AML other m 2021-02-26T10:57:27.43
IV.CESX.HHE. ML:1.7 0.00013267614 0.2432 AML other m 2021-02-26T10:57:28.11
IV.SAP2.EHE. ML:0.0 0.0002902098 0.1024 AML other m 2021-02-26T10:57:27.56
IV.CESX.HHN. ML:1.8 0.00016588410000000002 0.2752 AML other m 2021-02-26T10:57:29.85
IV.FIAM.HHN. ML:1.6 0.000093 0.2 AML other m 2021-02-26T10:57:29.86
IV.FIAM.HHE. ML:1.5 0.0000788 1.66 AML other m 2021-02-26T10:57:30.86
IV.ATCC.EHE. ML:1.9 0.000144818 0.2048 AML other m 2021-02-26T10:57:31.35
IV.ATCC.EHN. ML:1.9 0.000153 0.2 AML other m 2021-02-26T10:57:32.34
IV.MURB.HHE. ML:2.3 0.0003015 0.5 AML other m 2021-02-26T10:57:35.27
IV.VCEL.EHN. ML:1.8 0.00010211046999999999 0.1408 AML other m 2021-02-26T10:57:36.52
IV.VCEL.EHE. ML:1.8 0.00009195 0.34 AML other m 2021-02-26T10:57:36.58
IV.T0110.HHE. ML:1.8 0.00008645714 0.48 AML other m 2021-02-26T10:57:36.00
IV.MURB.HHN. ML:2.2 0.00027994765 0.32 AML other m 2021-02-26T10:57:38.03
IV.MGAB.HHN. ML:1.7 0.00006624552 0.3968 AML other m 2021-02-26T10:57:40.93
IV.T0110.HHN. ML:1.7 0.00007246422999999999 0.4416 AML other m 2021-02-26T10:57:39.73
IV.MGAB.HHE. ML:1.6 0.000048404465 0.4416 AML other m 2021-02-26T10:57:44.58
IV.LNSS.HNE. ML:2.3 0.0014401834999999998 0.128 AML other m 2021-02-26T10:57:19.40
IV.LNSS.HNN. ML:2.1 0.00100567945 0.192 AML other m 2021-02-26T10:57:19.43
IV.MTRA.HNN. ML:1.9 0.00059427805 0.1536 AML other m 2021-02-26T10:57:20.44
IV.MTRA.HNE. ML:2.0 0.0006537110500000001 0.1152 AML other m 2021-02-26T10:57:20.86
IV.CESI.HNE. ML:1.8 0.0003159617 0.2304 AML other m 2021-02-26T10:57:22.34
IV.CESI.HNN. ML:2.2 0.0006768442 0.2368 AML other m 2021-02-26T10:57:22.72
IV.GUMA.HNE. ML:1.9 0.00031498619999999997 0.352 AML other m 2021-02-26T10:57:28.87
IV.GUMA.HNN. ML:2.7 0.0019563295 1.2864 AML other m 2021-02-26T10:57:23.75
IV.TERO.HNE. ML:1.7 0.00014323877 0.1408 AML other m 2021-02-26T10:57:26.27
IV.TERO.HNN. ML:1.7 0.00014300681500000002 0.1408 AML other m 2021-02-26T10:57:25.89
IV.FIAM.HNN. ML:1.9 0.00019376369999999998 0.224 AML other m 2021-02-26T10:57:29.75
IV.EL6.EHE. ML:2.0 0.00020732747500000002 0.1408 AML other m 2021-02-26T10:57:32.68
IV.EL6.EHN. ML:1.9 0.0001504673 0.1408 AML other m 2021-02-26T10:57:33.53
IV.MURB.HNE. ML:2.3 0.00028652375 0.2304 AML other m 2021-02-26T10:57:36.27
IV.MURB.HNN. ML:2.2 0.000224168 0.32 AML other m 2021-02-26T10:57:38.04
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