Earthquake with magnitude of ML 1.1 on date 30-01-2020 and time 22:56:31 (UTC) in region 3 km E Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km E Norcia (PG), on

  • 30-01-2020 22:56:31 (UTC)
  • 30-01-2020 23:56:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8060, 13.1320 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 3 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 11 724 5962
Cascia PG 14 3217 9179
Arquata del Tronto AP 14 1178 10357
Visso MC 14 1107 11464
Ussita MC 16 444 11908
Accumoli RI 16 667 12575
Montegallo AP 17 523 13098
Cerreto di Spoleto PG 18 1075 14173
Poggiodomo PG 19 117 14290
Montemonaco AP 19 604 14894
Sellano PG 19 1079 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
96 Km W of Pescara (121014 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
99 Km NW 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
Reviewed
Rev100
ML 1.1 2020-01-30
22:56:31
42.8058 13.1317 10 2020-01-30
23:01:19
Sala Sismica INGV-Roma 76049231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-30 22:56:31 ± 0.06
Latitude 42.8058 ± 0.0027
Longitude 13.1317 ± 0.0061
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 76049231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 487
Semi-minor axis of confidence ellipse (meter) 82
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30307
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 76049231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-30 23:01:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2020-01-30T22:56:43.04 0.6 undecidable manual S 168 33.6441 50 0.26 47
IV.GUMA.HHZ. 2020-01-30T22:56:42.89 0.6 undecidable manual S 30 32.9448 50 0.29 47
IV.CESI.HHZ. 2020-01-30T22:56:41.39 0.6 undecidable manual S 320 28.749 50 -0.1 49
IV.LNSS.HHZ. 2020-01-30T22:56:40.14 0.6 undecidable manual S 198 23.754 112 0.25 48
IV.SMA1.EHZ. 2020-01-30T22:56:40.17 0.6 undecidable manual S 139 25.5522 111 -0.32 47
IV.FDMO.HHZ. 2020-01-30T22:56:40.50 0.6 undecidable manual S 352 25.8519 110 -0.08 49
IV.MMO1.EHZ. 2020-01-30T22:56:38.22 0.6 undecidable manual S 57 18.9699 117 -0.16 49
IV.GUMA.HHZ. 2020-01-30T22:56:37.74 1.0 undecidable manual P 30 32.9448 50 0.04 25
IV.RM33.EHZ. 2020-01-30T22:56:37.80 1.0 undecidable manual P 168 33.6441 50 -0.01 25
IV.CSP1.EHZ. 2020-01-30T22:56:37.26 3.0 undecidable manual P -0.16 0
IV.FDMO.HHZ. 2020-01-30T22:56:36.31 0.1 positive manual P 352 25.8519 110 -0.22 96
IV.CESI.HHZ. 2020-01-30T22:56:36.93 0.1 positive manual P 320 28.749 50 -0.13 97
IV.LNSS.HHZ. 2020-01-30T22:56:36.10 0.1 undecidable manual P 198 23.754 112 -0.04 100
IV.MC2.EHZ. 2020-01-30T22:56:36.92 0.6 undecidable manual S 22 12.5763 127 0.42 47
IV.SMA1.EHZ. 2020-01-30T22:56:36.23 1.0 negative manual P 139 25.5522 111 -0.26 24
IV.MMO1.EHZ. 2020-01-30T22:56:35.12 0.6 positive manual P 57 18.9699 117 -0.15 49
IV.MC2.EHZ. 2020-01-30T22:56:34.41 0.3 undecidable manual P 22 12.5763 127 0.22 74
IV.NRCA.HHZ. 2020-01-30T22:56:34.55 0.6 undecidable manual S 335 3.3966 161 0.01 52
IV.NRCA.HHZ. 2020-01-30T22:56:33.16 0.3 undecidable manual P 335 3.3966 161 0.11 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.9 0.0014299999999999998 0.14 AML other m 2020-01-30T22:56:34.62
IV.NRCA.HHE. ML:1.6 0.0007204999999999999 0.4 AML other m 2020-01-30T22:56:34.68
IV.LNSS.HHN. ML:1.1 0.00008325 1.42 AML other m 2020-01-30T22:56:40.25
IV.LNSS.HHE. ML:1.3 0.00011555000000000002 0.36 AML other m 2020-01-30T22:56:40.56
IV.FDMO.HHN. ML:0.7 0.0000321 0.94 AML other m 2020-01-30T22:56:41.47
IV.SMA1.EHN. ML:0.9 0.000044399999999999995 0.44 AML other m 2020-01-30T22:56:41.01
IV.FDMO.HHE. ML:0.6 0.00002595 1.12 AML other m 2020-01-30T22:56:41.64
IV.CESI.HHN. ML:1.1 0.00005835 0.54 AML other m 2020-01-30T22:56:41.71
IV.CESI.HHE. ML:1.0 0.0000553 0.42 AML other m 2020-01-30T22:56:41.71
IV.SMA1.EHE. ML:0.8 0.00004015 0.42 AML other m 2020-01-30T22:56:43.75
IV.GUMA.HHN. ML:1.2 0.00007225000000000001 1.4 AML other m 2020-01-30T22:56:44.27
IV.GUMA.HHE. ML:1.3 0.00008010000000000001 0.28 AML other m 2020-01-30T22:56:46.16
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