INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.9 on date 07-08-2018 and time 13:19:44 (Italy) in region 7 km NE Norcia (PG)

A magnitude ML 1.9 earthquake occured in region: 7 km NE Norcia (PG), on

  • 07-08-2018 11:19:44 (UTC)
  • 07-08-2018 13:19:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.16 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 7 4957 4957
Castelsantangelo sul Nera MC 8 281 5238
Preci PG 11 724 5962
Arquata del Tronto AP 13 1178 7140
Visso MC 13 1107 8247
Ussita MC 13 444 8691
Montegallo AP 14 523 9214
Montemonaco AP 16 604 9818
Accumoli RI 16 667 10485
Cascia PG 17 3217 13702
Bolognola MC 19 142 13844
Montefortino FM 20 1178 15022
Cerreto di Spoleto PG 20 1075 16097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
51 Km NE of Terni (111501 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
95 Km W of Pescara (121014 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.9 2018-08-07
11:19:44
42.83 13.16 10 2018-08-07
11:31:50
Sala Sismica INGV-Roma 59473271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-07 11:19:44 ± 0.05
Latitude 42.83 ± 0.00
Longitude 13.16 ± 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 59473271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 419
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 65
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.52161
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 59473271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-07 11:31:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2018-08-07T11:20:38.78 3.0 undecidable manual Sn 0.46 0
IV.PIEI.HHZ. 2018-08-07T11:20:13.57 3.0 undecidable manual S -0.24 0
IV.RIBO.EHZ.01 2018-08-07T11:20:13.04 3.0 negative manual Pn 1.65 0
IV.ARVD.HHZ. 2018-08-07T11:20:08.41 3.0 undecidable manual S -0.42 0
IV.FAGN.HHZ. 2018-08-07T11:20:07.95 3.0 undecidable manual S 0.78 0
IV.SAMA.HHZ. 2018-08-07T11:20:05.93 3.0 undecidable manual P 0.46 0
IV.FIAM.HHZ. 2018-08-07T11:20:03.89 3.0 undecidable manual S -0.42 0
IV.EL6.EHZ. 2018-08-07T11:20:02.57 3.0 undecidable manual S -0.17 0
IV.ATCC.EHZ. 2018-08-07T11:20:02.91 0.6 undecidable manual S 313 0.5216 50 0.71 39
IV.CESX.HHZ. 2018-08-07T11:20:01.22 3.0 undecidable manual S -0.22 0
IV.T0110.HHZ. 2018-08-07T11:19:59.04 3.0 positive manual P -0.04 0
IV.ARVD.HHZ. 2018-08-07T11:19:57.61 3.0 positive manual P -0.36 0
IV.SSFR.HHZ. 2018-08-07T11:19:57.91 3.0 undecidable manual P 0.35 0
IV.VCEL.EHZ. 2018-08-07T11:19:57.20 3.0 negative manual P -0.27 0
IV.TERO.HHZ. 2018-08-07T11:19:57.92 0.6 undecidable manual S 122 0.3849 50 -0.22 46
IV.MML1.HNZ. 2018-08-07T11:19:56.30 0.3 undecidable manual S 334 0.3175 50 0.17 71
IV.CAMP.HHZ. 2018-08-07T11:19:56.56 0.6 undecidable manual S 148 0.3444 50 -0.38 45
IV.MURB.HHZ. 2018-08-07T11:19:56.74 3.0 negative manual P -0.2 0
IV.MF5.EHZ. 2018-08-07T11:19:55.45 0.3 undecidable manual S 54 0.2716 50 0.67 62
IV.PF6.EHE. 2018-08-07T11:19:55.64 0.3 undecidable manual S 5 0.3112 50 -0.31 69
IV.FIAM.HHZ. 2018-08-07T11:19:55.13 3.0 negative manual P -0.3 0
IV.CING.HHZ. 2018-08-07T11:19:55.01 3.0 positive manual P -0.39 0
IV.CESI.HHZ. 2018-08-07T11:19:54.26 0.3 undecidable manual S 313 0.2572 50 -0.11 72
IV.CSP1.EHE. 2018-08-07T11:19:54.41 0.3 undecidable manual S 7 0.2662 50 -0.21 71
IV.EL6.EHZ. 2018-08-07T11:19:54.17 3.0 positive manual P -0.38 0
IV.ATCC.EHZ. 2018-08-07T11:19:54.65 0.1 undecidable manual P 313 0.5216 50 0.11 91
IV.GUMA.HHZ. 2018-08-07T11:19:54.98 0.6 undecidable manual S 29 0.2671 50 0.32 46
IV.SNTG.HHZ. 2018-08-07T11:19:53.76 3.0 undecidable manual P 0.11 0
IV.T1299.EHZ. 2018-08-07T11:19:53.30 0.3 undecidable manual S 155 0.2131 113 0.29 70
IV.SMA1.EHZ. 2018-08-07T11:19:53.61 0.3 undecidable manual S 147 0.2356 50 -0.1 73
IV.GIGS.HHZ. 2018-08-07T11:19:53.84 3.0 negative manual P -0.26 0
IV.LNSS.HHZ. 2018-08-07T11:19:53.92 0.3 undecidable manual S 201 0.2419 50 0.03 74
IV.FDMO.HHZ. 2018-08-07T11:19:52.30 0.3 undecidable manual S 346 0.2149 113 -0.79 60
IV.TERO.HHZ. 2018-08-07T11:19:52.02 0.3 undecidable manual P 122 0.3849 50 -0.18 70
IV.RM33.EHZ. 2018-08-07T11:19:51.04 3.0 undecidable manual P 0.02 0
IV.CAMP.HHZ. 2018-08-07T11:19:51.26 0.1 undecidable manual P 148 0.3444 50 -0.24 92
IV.FEMA.HNE. 2018-08-07T11:19:51.01 0.3 undecidable manual S 329 0.1565 120 -0.06 74
IV.MTRA.HNE. 2018-08-07T11:19:51.81 0.6 undecidable manual S 112 0.1871 116 -0.29 47
IV.MMO1.EHZ. 2018-08-07T11:19:50.29 0.3 undecidable manual S 60 0.1412 123 -0.27 71
IV.GUMA.HHZ. 2018-08-07T11:19:50.41 0.6 undecidable manual P 29 0.2671 50 0.22 47
IV.CESI.HHZ. 2018-08-07T11:19:50.01 0.1 positive manual P 313 0.2572 50 -0.01 98
IV.CSP1.EHE. 2018-08-07T11:19:50.11 0.1 negative manual P 7 0.2662 50 -0.05 97
IV.MML1.HNZ. 2018-08-07T11:19:50.93 0.1 undecidable manual P 334 0.3175 50 -0.11 95
IV.MF5.EHZ. 2018-08-07T11:19:50.56 0.1 negative manual P 54 0.2716 50 0.3 92
IV.PF6.EHE. 2018-08-07T11:19:50.78 0.1 undecidable manual P 5 0.3112 50 -0.15 95
IV.SMA1.EHZ. 2018-08-07T11:19:49.48 0.6 undecidable manual P 147 0.2356 50 -0.16 48
IV.LNSS.HHZ. 2018-08-07T11:19:49.73 0.1 negative manual P 201 0.2419 50 -0.02 99
IV.FDMO.HHZ. 2018-08-07T11:19:49.12 0.1 undecidable manual P 346 0.2149 113 -0.16 96
IV.T1299.EHZ. 2018-08-07T11:19:49.46 0.1 undecidable manual P 155 0.2131 113 0.22 95
IV.MC2.EHZ. 2018-08-07T11:19:49.17 0.3 undecidable manual S 14 0.0863 137 0.25 72
IV.FEMA.HNE. 2018-08-07T11:19:48.24 0.1 undecidable manual P 329 0.1565 120 0.12 98
IV.MTRA.HNE. 2018-08-07T11:19:48.69 0.1 undecidable manual P 112 0.1871 116 -0.02 99
IV.MC2.EHZ. 2018-08-07T11:19:47.17 0.1 negative manual P 14 0.0863 137 0.3 96
IV.MMO1.EHZ. 2018-08-07T11:19:47.86 0.1 negative manual P 60 0.1412 123 0.04 100
IV.NRCA.HHZ. 2018-08-07T11:19:47.71 0.3 undecidable manual S 280 0.0342 159 -0.13 75
IV.NRCA.HHZ. 2018-08-07T11:19:46.44 0.1 positive manual P 280 0.0342 159 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:3 0.0166 1.58 AML other m 2018-08-07T11:19:47.94
IV.NRCA.HNE. ML:3 0.01625 1.56 AML other m 2018-08-07T11:19:47.94
IV.NRCA.HHN. ML:3.2 0.0247 0.1 AML other m 2018-08-07T11:19:48.39
IV.NRCA.HNN. ML:3.1 0.0223 0.1 AML other m 2018-08-07T11:19:48.39
IV.FDMO.HHE. ML:1.8 0.000441 0.9 AML other m 2018-08-07T11:19:52.48
IV.FDMO.HHN. ML:1.9 0.000469 0.32 AML other m 2018-08-07T11:19:53.17
IV.LNSS.HHE. ML:2.5 0.001865 0.22 AML other m 2018-08-07T11:19:54.40
IV.CESI.HHE. ML:2.3 0.0010215 0.2 AML other m 2018-08-07T11:19:54.46
IV.LNSS.HHN. ML:2.5 0.00164 0.3 AML other m 2018-08-07T11:19:54.39
IV.CESI.HHN. ML:2.4 0.00144 0.26 AML other m 2018-08-07T11:19:54.62
IV.MF5.EHE. ML:2.2 0.0008295 1.78 AML other m 2018-08-07T11:19:56.99
IV.MF5.EHN. ML:2.1 0.00058 0.2 AML other m 2018-08-07T11:19:56.01
IV.SMA1.EHN. ML:2 0.000503 0.46 AML other m 2018-08-07T11:19:56.50
IV.CAMP.HHE. ML:1.6 0.0001455 1.18 AML other m 2018-08-07T11:19:57.84
IV.SMA1.EHE. ML:1.8 0.000337 0.38 AML other m 2018-08-07T11:19:57.28
IV.SNTG.HHE. ML:1.5 7.435E-5 0.46 AML other m 2018-08-07T11:19:57.45
IV.RM33.EHN. ML:1.8 0.0002695 1.08 AML other m 2018-08-07T11:19:57.00
IV.CAMP.HHN. ML:1.5 0.00010615 0.98 AML other m 2018-08-07T11:19:57.58
IV.RM33.EHE. ML:1.8 0.000227 0.3 AML other m 2018-08-07T11:19:57.85
IV.TERO.HHE. ML:1.8 0.000218 1.9 AML other m 2018-08-07T11:19:59.01
IV.TERO.HHN. ML:1.8 0.000209 0.86 AML other m 2018-08-07T11:19:59.49
IV.EL6.EHE. ML:2.4 0.000524 0.42 AML other m 2018-08-07T11:19:59.55
IV.EL6.EHN. ML:2.2 0.00036 0.42 AML other m 2018-08-07T11:19:59.62
IV.GIGS.HHE. ML:1.3 4.72E-5 0.12 AML other m 2018-08-07T11:20:02.18
IV.SNTG.HHN. ML:1.6 0.0001011 1.26 AML other m 2018-08-07T11:20:02.06
IV.GIGS.HHN. ML:1.2 3.68E-5 1.28 AML other m 2018-08-07T11:20:02.73
IV.CESX.HHE. ML:1.8 0.000166 0.58 AML other m 2018-08-07T11:20:02.88
IV.FIAM.HHN. ML:1.6 8.235E-5 0.5 AML other m 2018-08-07T11:20:04.38
IV.ATCC.EHE. ML:1.9 0.0001545 1.04 AML other m 2018-08-07T11:20:04.86
IV.CING.HHN. ML:1.9 0.0001555 0.14 AML other m 2018-08-07T11:20:04.56
IV.FIAM.HHE. ML:1.6 7.885E-5 0.78 AML other m 2018-08-07T11:20:04.55
IV.CING.HHE. ML:1.8 0.0001325 0.66 AML other m 2018-08-07T11:20:04.52
IV.ATCC.EHN. ML:1.9 0.0001575 1.68 AML other m 2018-08-07T11:20:05.86
IV.CESX.HHN. ML:1.7 0.0001255 0.2 AML other m 2018-08-07T11:20:05.43
IV.FAGN.HHN. ML:2.1 0.0002085 0.36 AML other m 2018-08-07T11:20:09.62
IV.ARVD.HHE. ML:1.5 4.81E-5 1.74 AML other m 2018-08-07T11:20:10.08
IV.FAGN.HHE. ML:2.4 0.0004355 0.32 AML other m 2018-08-07T11:20:10.21
IV.SSFR.HHN. ML:1.9 0.000129 0.54 AML other m 2018-08-07T11:20:11.97
IV.ARVD.HHN. ML:1.3 2.955E-5 0.54 AML other m 2018-08-07T11:20:12.27
IV.MURB.HHN. ML:2.1 0.000208 0.42 AML other m 2018-08-07T11:20:12.28
IV.MURB.HHE. ML:2.2 0.000235 1.08 AML other m 2018-08-07T11:20:12.90
IV.VCEL.EHN. ML:1.7 8.67E-5 0.38 AML other m 2018-08-07T11:20:13.79
IV.PIEI.HHE. ML:1.6 4.1E-5 0.24 AML other m 2018-08-07T11:20:13.91
IV.SSFR.HHE. ML:1.9 0.000117 0.2 AML other m 2018-08-07T11:20:15.08
IV.VCEL.EHE. ML:1.9 0.0001175 0.48 AML other m 2018-08-07T11:20:15.78
IV.T0110.HHN. ML:1.8 7.735E-5 0.76 AML other m 2018-08-07T11:20:17.39
IV.T0110.HHE. ML:1.8 7.82E-5 0.94 AML other m 2018-08-07T11:20:22.24
IV.PIEI.HHN. ML:1.4 2.585E-5 0.84 AML other m 2018-08-07T11:20:23.64
IV.SAMA.HHN. ML:3.1 0.000831 0.06 AML other m 2018-08-07T11:20:29.47
IV.SAMA.HHE. ML:3 0.0006695 0.06 AML other m 2018-08-07T11:20:29.89
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