INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.7 on date 09-12-2018 and time 03:54:20 (Italy) in region 2 km E Norcia (PG)

A magnitude ML 0.7 earthquake occured in region: 2 km E Norcia (PG), on

  • 09-12-2018 02:54:20 (UTC)
  • 09-12-2018 03:54:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.11 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 2 4957 4957
Cascia PG 11 3217 8174
Preci PG 12 724 8898
Castelsantangelo sul Nera MC 13 281 9179
Accumoli RI 15 667 9846
Arquata del Tronto AP 15 1178 11024
Cerreto di Spoleto PG 16 1075 12099
Visso MC 16 1107 13206
Poggiodomo PG 17 117 13323
Ussita MC 18 444 13767
Sellano PG 19 1079 14846
Montegallo AP 19 523 15369
Cittareale RI 19 482 15851
Monteleone di Spoleto PG 20 599 16450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
99 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
Rev 100 ML 0.7 2018-12-09
02:54:20
42.79 13.11 10 2018-12-09
08:01:41
Sala Sismica INGV-Roma 63782511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-09 02:54:20 ± 0.06
Latitude 42.79 ± 0.00
Longitude 13.11 ± 0.00
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 63782511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 375
Semi-minor axis of confidence ellipse (meter) 314
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 99
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
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) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.3975
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 63782511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-09 08:01:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HNE. 2018-12-09T02:54:35.23 0.3 undecidable manual S 273 0.3975 50 0.23 68
IV.MML1.HNE. 2018-12-09T02:54:33.45 0.6 undecidable manual S 343 0.3417 50 0.09 47
IV.RM33.HNE. 2018-12-09T02:54:31.49 0.6 undecidable manual S 165 0.2878 50 -0.29 45
IV.FDMO.HHZ. 2018-12-09T02:54:30.46 0.3 undecidable manual S 356 0.25 50 -0.18 69
IV.SMA1.EHZ. 2018-12-09T02:54:30.07 0.3 undecidable manual S 133 0.2275 50 0.1 71
IV.T1299.HNZ. 2018-12-09T02:54:29.18 0.3 undecidable manual S 141 0.1979 115 0.24 70
IV.MOMA.HNE. 2018-12-09T02:54:28.87 0.1 undecidable manual P 273 0.3975 50 -0.03 93
IV.LNSS.HHZ. 2018-12-09T02:54:28.66 0.6 undecidable manual S 196 0.1916 115 -0.05 49
IV.MMO1.EHZ. 2018-12-09T02:54:28.63 0.3 undecidable manual S 55 0.1934 115 -0.17 72
IV.MML1.HNE. 2018-12-09T02:54:28.38 0.1 undecidable manual P 343 0.3417 50 0.43 88
IV.TERO.HNE. 2018-12-09T02:54:28.26 0.1 undecidable manual P 114 0.3975 50 -0.64 79
IV.GAVE.EHZ. 2018-12-09T02:54:28.41 0.3 undecidable manual S 239 0.1853 116 -0.1 73
IV.RM33.HNE. 2018-12-09T02:54:27.20 0.1 undecidable manual P 165 0.2878 50 0.17 94
IV.MC2.EHZ. 2018-12-09T02:54:27.34 0.6 undecidable manual S 25 0.1367 124 0.46 45
IV.FDMO.HHZ. 2018-12-09T02:54:26.28 1.0 undecidable manual P 356 0.25 50 -0.1 24
IV.SMA1.EHZ. 2018-12-09T02:54:26.39 0.1 undecidable manual P 133 0.2275 50 0.4 90
IV.GAVE.EHZ. 2018-12-09T02:54:25.00 0.1 undecidable manual P 239 0.1853 116 -0.15 96
IV.LNSS.HHZ. 2018-12-09T02:54:25.08 0.1 undecidable manual P 196 0.1916 115 -0.19 95
IV.T1299.HNZ. 2018-12-09T02:54:25.59 0.1 undecidable manual P 141 0.1979 115 0.19 94
IV.MMO1.EHZ. 2018-12-09T02:54:25.03 0.1 undecidable manual P 55 0.1934 115 -0.29 93
IV.NRCA.HHZ. 2018-12-09T02:54:24.21 0.3 undecidable manual S 3 0.0468 153 -0.27 72
IV.MC2.EHZ. 2018-12-09T02:54:24.31 0.1 undecidable manual P 25 0.1367 124 0.1 97
IV.NRCA.HHZ. 2018-12-09T02:54:22.84 0.1 undecidable manual P 3 0.0468 153 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.7 9.585E-5 0.94 AML other m 2018-12-09T02:54:25.39
IV.GAVE.EHN. ML:0.4 2.192439E-5 0.1184 AML other m 2018-12-09T02:54:28.78
IV.GAVE.EHE. ML:0.6 3.02165395E-5 0.1792 AML other m 2018-12-09T02:54:29.24
IV.LNSS.HHE. ML:0.9 5.211327E-5 0.12 AML other m 2018-12-09T02:54:29.24
IV.LNSS.HHN. ML:0.8 4.435282E-5 0.08 AML other m 2018-12-09T02:54:29.19
IV.FDMO.HHE. ML:0.6 2.20228E-5 1.12 AML other m 2018-12-09T02:54:30.55
IV.FDMO.HHN. ML:0.6 2.0921267E-5 0.3408 AML other m 2018-12-09T02:54:30.56
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download