Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 27-12-2016 and time 03:53:49 (Italy) in region 8 km SE Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 8 km SE Norcia (PG), on

  • 27-12-2016 02:53:49 (UTC)
  • 27-12-2016 03:53:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7360, 13.1500 at 1 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.

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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
Norcia PG 8 4957 4957
Accumoli RI 9 667 5624
Cascia PG 11 3217 8841
Arquata del Tronto AP 13 1178 10019
Cittareale RI 13 482 10501
Amatrice RI 16 2657 13158
Castelsantangelo sul Nera MC 18 281 13439
Poggiodomo PG 18 117 13556
Preci PG 18 724 14280
Monteleone di Spoleto PG 19 599 14879
Montegallo AP 19 523 15402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SE of Foligno (57155 inhabitants)
45 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
75 Km SE of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
92 Km W of Pescara (121014 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
94 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
Reviewed
Rev100 		ML 1.5 2016-12-27
02:53:49		 42.736 13.1502 1 2016-12-27
03:24:35		 Sala Sismica INGV-Roma 37817711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-12-27 02:53:49 ± 0.56
Latitude 42.7360 ± 0.0198
Longitude 13.1502 ± 0.0245
Depth (km) 1 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 37817711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2580
Semi-minor axis of confidence ellipse (meter) 1490
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 2580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 228
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27609
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 37817711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-12-27 03:24:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2016-12-27T02:54:10.55 3.0 undecidable manual S -1.49 0
IV.FOSV.EHZ. 2016-12-27T02:54:09.69 3.0 undecidable manual S 0.21 0
IV.EL6.EHZ. 2016-12-27T02:54:08.69 3.0 undecidable manual S 0.17 0
IV.SNTG.HHZ. 2016-12-27T02:54:07.76 3.0 undecidable manual S 1.13 0
IV.ASSB.HHZ. 2016-12-27T02:54:04.92 3.0 undecidable manual S 0.05 0
IV.T1256.HHZ. 2016-12-27T02:53:59.46 0.6 undecidable manual S 12 30.6471 91 -1 41
IV.T1241.EHZ. 2016-12-27T02:53:58.15 0.6 undecidable manual S 60 26.4513 92 -0.88 44
IV.T1243.HHZ. 2016-12-27T02:53:58.00 0.3 undecidable manual S 100 24.6531 92 -0.41 79
IV.TERO.HHZ. 2016-12-27T02:53:57.16 3.0 undecidable manual P -1.33 0
IV.T1211.EHZ. 2016-12-27T02:53:57.34 3.0 positive manual P 0.2 0
IV.ARRO.EHZ. 2016-12-27T02:53:57.19 3.0 negative manual P -0.07 0
IV.MMO1.EHZ. 2016-12-27T02:53:57.92 0.6 undecidable manual S 38 23.1546 92 0.06 57
IV.RM33.EHZ. 2016-12-27T02:53:56.59 3.0 undecidable manual P -0.16 0
IV.T1256.HHZ. 2016-12-27T02:53:55.40 1.0 undecidable manual P 12 30.6471 91 -0.57 25
IV.T1245.HHZ. 2016-12-27T02:53:55.27 0.6 undecidable manual S 13 13.6752 93 0.67 49
IV.LNSS.HHZ. 2016-12-27T02:53:55.07 3.0 positive manual P 0.33 0
IV.T1243.HHZ. 2016-12-27T02:53:55.45 0.6 undecidable manual P 100 24.6531 92 0.67 48
IV.MMO1.EHZ. 2016-12-27T02:53:55.06 0.1 undecidable manual P 38 23.1546 92 0.59 100
IV.SMA1.EHZ. 2016-12-27T02:53:55.05 3.0 negative manual P -0.32 0
IV.T1241.EHZ. 2016-12-27T02:53:55.08 1.0 undecidable manual P 60 26.4513 92 -0.06 28
IV.MC2.EHZ. 2016-12-27T02:53:53.86 3.0 undecidable manual S -0.81 0
IV.T1245.HHZ. 2016-12-27T02:53:53.21 0.1 undecidable manual P 13 13.6752 93 0.62 100
IV.T1218.EHZ. 2016-12-27T02:53:53.97 3.0 undecidable manual S -2.2 0
IV.T1216.EHZ. 2016-12-27T02:53:53.26 0.1 undecidable manual P 328 20.1687 92 -0.62 99
IV.T1215.EHZ. 2016-12-27T02:53:52.78 3.0 undecidable manual P -0.98 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:1.2 0.000047 0.5 AML other m 2016-12-27T02:54:14.16
IV.ASSB.HHN. ML:1.5 0.0000781 0.68 AML other m 2016-12-27T02:54:15.51
IV.EL6.EHN. ML:1.8 0.0001119 0.52 AML other m 2016-12-27T02:54:15.21
IV.EL6.EHE. ML:1.6 0.0000658 0.42 AML other m 2016-12-27T02:54:16.46
IV.FDMO.HHN. ML:2.8 0.002545 0.1 AML other m 2016-12-27T02:54:03.73
IV.FDMO.HHE. ML:3.0 0.004615 0.2 AML other m 2016-12-27T02:54:03.67
IV.FOSV.EHE. ML:1.4 0.0000406 0.14 AML other m 2016-12-27T02:54:16.36
IV.FOSV.EHN. ML:1.6 0.00006185 0.26 AML other m 2016-12-27T02:54:16.52
IV.LNSS.HHE. ML:0.9 0.00008695 0.36 AML other m 2016-12-27T02:54:08.38
IV.LNSS.HHN. ML:1.0 0.00009245000000000001 0.36 AML other m 2016-12-27T02:54:08.50
IV.RM33.EHE. ML:1.5 0.00020549999999999998 0.3 AML other m 2016-12-27T02:54:05.14
IV.RM33.EHN. ML:1.2 0.00009655 1.1 AML other m 2016-12-27T02:54:05.79
IV.SMA1.EHE. ML:1.2 0.000132 1.52 AML other m 2016-12-27T02:54:05.05
IV.SMA1.EHN. ML:1.2 0.00014050000000000003 0.34 AML other m 2016-12-27T02:54:05.78
IV.T1219.HNN. ML:2.2 0.0006655 0.22 AML other m 2016-12-27T02:54:05.88
IV.T1219.EHE. ML:2.1 0.0004505 1.74 AML other m 2016-12-27T02:54:05.02
IV.T1219.EHN. ML:2.2 0.00065 0.2 AML other m 2016-12-27T02:54:05.88
IV.T1219.HNE. ML:2.0 0.00042249999999999997 0.1 AML other m 2016-12-27T02:54:06.02
IV.T1245.HHN. ML:1.1 0.000151 0.3 AML other m 2016-12-27T02:53:56.09
IV.T1245.HHE. ML:1.0 0.00014495000000000003 0.58 AML other m 2016-12-27T02:53:58.47
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