Earthquake with magnitude of ML 1.1 on date 12-01-2021 and time 03:30:40 (UTC) in region 5 km NE Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km NE Norcia (PG), on

  • 12-01-2021 03:30:40 (UTC)
  • 12-01-2021 04:30:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8350, 13.1120 at 10 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
Norcia PG 5 4957 4957
Castelsantangelo sul Nera MC 8 281 5238
Preci PG 8 724 5962
Visso MC 11 1107 7069
Ussita MC 13 444 7513
Cascia PG 15 3217 10730
Cerreto di Spoleto PG 16 1075 11805
Sellano PG 16 1079 12884
Arquata del Tronto AP 17 1178 14062
Montegallo AP 18 523 14585
Accumoli RI 19 667 15252
Montemonaco AP 19 604 15856
Poggiodomo PG 20 117 15973
Monte Cavallo MC 20 145 16118

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km W of Pescara (121014 inhabitants)
100 Km N of Tivoli (56533 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
Reviewed
Rev100
ML 1.1 2021-01-12
03:30:40
42.8347 13.1123 10 2021-01-12
03:37:41
Sala Sismica INGV-Roma 86189421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-12 03:30:40 ± 0.07
Latitude 42.8347 ± 0.0036
Longitude 13.1123 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86189421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 392
Semi-minor axis of confidence ellipse (meter) 290
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41818
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 86189421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-12 03:37:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2021-01-12T03:30:49.94 0.3 undecidable manual S 193 26.3514 110 -0.12 72
IV.CESI.HHZ. 2021-01-12T03:30:49.59 0.3 undecidable manual S 318 25.3524 111 -0.13 72
IV.TERO.HHZ. 2021-01-12T03:30:48.97 0.1 undecidable manual P 120 46.4202 50 -0.12 93
IV.MMO1.EHZ. 2021-01-12T03:30:47.52 0.1 undecidable manual S 68 18.87 117 -0.15 97
IV.SMA1.EHZ. 2021-01-12T03:30:46.56 0.1 undecidable manual P 141 29.0487 50 0.16 95
IV.LNSS.HHZ. 2021-01-12T03:30:46.06 0.1 undecidable manual P 193 26.3514 110 0.11 96
IV.CSP1.EHZ. 2021-01-12T03:30:46.30 0.1 undecidable manual P 15 29.5482 50 -0.18 94
IV.CESI.HHZ. 2021-01-12T03:30:45.82 0.1 undecidable manual P 318 25.3524 111 0.07 97
IV.MC2.EHZ. 2021-01-12T03:30:45.45 0.3 undecidable manual S 36 10.5783 132 0.18 73
IV.MMO1.EHZ. 2021-01-12T03:30:44.51 0.1 undecidable manual P 68 18.87 117 -0.05 98
IV.NRCA.HNZ. 2021-01-12T03:30:43.44 0.1 undecidable manual S 127 0.1998 179 -0.22 98
IV.MC2.EHZ. 2021-01-12T03:30:43.47 0.1 undecidable manual P 36 10.5783 132 0.29 95
IV.NRCA.HNZ. 2021-01-12T03:30:42.38 0.1 undecidable manual P 127 0.1998 179 0.13 100
IV.MTCE.HHZ. 2021-01-12T03:30:34.92 3.0 undecidable manual P -0.8 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.0 0.0008142669499999999 0.1392 AML other m 2021-01-12T03:30:43.49
IV.NRCA.HNN. ML:0.0 0.0006598036 0.12 AML other m 2021-01-12T03:30:44.11
IV.TERO.HNE. ML:2.2 0.00041549999999999996 0.8 AML other m 2021-01-12T03:30:55.55
IV.TERO.HNN. ML:2.2 0.0004325 0.86 AML other m 2021-01-12T03:30:56.53
IV.CESI.HHN. ML:1.0 0.00006594936 1.84 AML other m 2021-01-12T03:30:51.91
IV.LNSS.HHE. ML:0.9 0.000046111185 0.2 AML other m 2021-01-12T03:30:50.64
IV.LNSS.HHN. ML:1.0 0.000052302910000000004 0.8992 AML other m 2021-01-12T03:30:50.85
IV.SMA1.EHN. ML:1.1 0.000070411065 2.1216 AML other m 2021-01-12T03:30:51.97
IV.TERO.HHE. ML:0.8 0.000021870800000000004 1.3408 AML other m 2021-01-12T03:30:50.76
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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