Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 27-03-2018 and time 21:01:35 (UTC) in region 2 km E Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 2 km E Norcia (PG), on

  • 27-03-2018 21:01:35 (UTC)
  • 27-03-2018 23:01:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8000, 13.1220 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 11 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 15 1178 10357
Visso MC 15 1107 11464
Accumoli RI 16 667 12131
Ussita MC 16 444 12575
Cerreto di Spoleto PG 17 1075 13650
Montegallo AP 18 523 14173
Poggiodomo PG 18 117 14290
Sellano PG 19 1079 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 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
Bulletin
Rev1000 		ML 1.3 2018-03-27
21:01:35		 42.8002 13.1218 10 2019-04-24
14:49:43		 Bollettino Sismico Italiano INGV 59677391
Reviewed
Rev100 		ML 1.5 2018-03-27
21:01:34		 42.8007 13.1203 10 2018-03-27
21:07:55		 Sala Sismica INGV-Roma 54886101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-27 21:01:35 ± 0.05
Latitude 42.8002 ± 0.0027
Longitude 13.1218 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 59677391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 317
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 221
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.70956
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 54886101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-03-27 21:07:55

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 59677391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-08-12 17:16:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
TV.SF04.EHZ. 2018-03-27T21:02:08.63 3.0 undecidable manual S -3.19 0
IV.ARVD.HHZ. 2018-03-27T21:01:59.50 0.3 undecidable manual S 349 78.7656 50 0.71 54
IV.CING.HHZ. 2018-03-27T21:01:55.30 0.3 undecidable manual S 5 64.0914 50 0.43 62
IV.EL6.EHZ. 2018-03-27T21:01:53.80 0.6 undecidable manual S 358 58.6968 50 0.36 42
IV.SNTG.HHZ. 2018-03-27T21:01:51.90 0.6 undecidable manual S 344 52.503 50 0.11 45
IV.MOMA.HHZ. 2018-03-27T21:01:50.10 0.6 undecidable manual S 271 44.9217 50 0.36 43
IV.TERO.HHZ. 2018-03-27T21:01:49.10 0.6 undecidable manual S 116 43.9227 50 -0.39 43
IV.ARVD.HHZ. 2018-03-27T21:01:49.13 3.0 undecidable manual P 349 78.7656 50 0.39 0
IV.PF6.EHZ. 2018-03-27T21:01:47.40 0.6 undecidable manual S 9 37.9287 50 -0.48 43
IV.MF5.EHZ. 2018-03-27T21:01:47.20 0.6 undecidable manual S 53 34.4433 50 0.25 45
IV.CAMP.HHZ. 2018-03-27T21:01:47.40 0.6 undecidable manual S 141 37.5291 50 -0.38 44
IV.CING.HHZ. 2018-03-27T21:01:46.41 0.6 undecidable manual P 5 64.0914 50 -0.07 44
IV.GUMA.HHZ. 2018-03-27T21:01:46.90 0.6 undecidable manual S 31 33.9438 50 0.09 47
IV.CSP1.EHZ. 2018-03-27T21:01:46.20 0.6 undecidable manual S 12 33.0447 50 -0.38 44
IV.EL6.EHZ. 2018-03-27T21:01:45.26 1.0 undecidable manual P 358 58.6968 50 -0.39 21
IV.CESI.HHZ. 2018-03-27T21:01:45.20 0.6 undecidable manual S 322 28.749 50 -0.23 46
IV.FIAM.HHZ. 2018-03-27T21:01:45.49 1.0 undecidable manual P 180 58.9965 50 -0.2 22
IV.T1299.EHZ. 2018-03-27T21:01:44.00 0.6 undecidable manual S 145 22.5552 113 0.44 44
IV.SNTG.HHZ. 2018-03-27T21:01:44.66 3.0 undecidable manual P 344 52.503 50 -0.04 0
IV.LNSS.HHZ. 2018-03-27T21:01:44.00 1.0 undecidable manual S 197 22.8549 113 0.35 23
IV.OFFI.HHZ. 2018-03-27T21:01:44.77 1.0 negative manual P 72 48.2184 50 0.74 19
IV.SMA1.EHZ. 2018-03-27T21:01:44.80 0.6 undecidable manual S 137 25.6521 111 0.26 46
IV.TERO.HHZ. 2018-03-27T21:01:43.13 0.6 positive manual P 116 43.9227 50 -0.24 45
IV.T1221.EHZ. 2018-03-27T21:01:43.60 0.6 undecidable manual S 287 23.3544 113 -0.2 47
IV.MOMA.HHZ. 2018-03-27T21:01:43.35 0.6 undecidable manual P 271 44.9217 50 -0.17 45
IV.MF5.EHZ. 2018-03-27T21:01:42.03 0.3 positive manual P 53 34.4433 50 0.12 70
IV.MMO1.EHZ. 2018-03-27T21:01:42.50 0.3 undecidable manual S 57 19.9689 116 -0.24 70
IV.PF6.EHZ. 2018-03-27T21:01:42.13 1.0 undecidable manual P 9 37.9287 50 -0.31 22
IV.CAMP.HHZ. 2018-03-27T21:01:42.09 0.6 undecidable manual P 141 37.5291 50 -0.29 45
IV.MC2.EHZ. 2018-03-27T21:01:41.00 0.6 undecidable manual S 24 13.4754 126 0.2 47
IV.GUMA.HHZ. 2018-03-27T21:01:41.87 0.6 negative manual P 31 33.9438 50 0.05 47
IV.CSP1.EHZ. 2018-03-27T21:01:41.48 0.6 negative manual P 12 33.0447 50 -0.22 46
IV.T1221.EHZ. 2018-03-27T21:01:40.02 0.1 positive manual P 287 23.3544 113 -0.06 96
IV.T1299.EHZ. 2018-03-27T21:01:40.18 0.6 negative manual P 145 22.5552 113 0.23 46
IV.CESI.HHZ. 2018-03-27T21:01:40.70 0.3 undecidable manual P 322 28.749 50 -0.33 67
IV.LNSS.HHZ. 2018-03-27T21:01:40.05 0.1 undecidable manual P 197 22.8549 113 0.05 96
IV.SMA1.EHZ. 2018-03-27T21:01:40.40 0.6 negative manual P 137 25.6521 111 -0.12 47
IV.FEMA.HNZ. 2018-03-27T21:01:39.66 1.0 undecidable manual P 342 18.87 117 0.38 23
IV.MTRA.EHZ. 2018-03-27T21:01:39.91 0.6 negative manual P 102 22.8549 113 -0.1 48
IV.MMO1.EHZ. 2018-03-27T21:01:39.32 0.1 positive manual P 57 19.9689 116 -0.15 95
IV.T1214.EHZ. 2018-03-27T21:01:39.50 0.3 undecidable manual S 122 8.3805 139 0.01 75
OB.GAVE.EHZ. 2018-03-27T21:01:39.87 0.3 positive manual P 237 22.0668 114 0.01 73
IV.MC2.EHZ. 2018-03-27T21:01:38.50 0.3 positive manual P 24 13.4754 126 0.14 72
IV.NRCA.HHZ. 2018-03-27T21:01:38.30 0.3 undecidable manual S 351 3.7962 159 -0.36 70
IV.T1214.EHZ. 2018-03-27T21:01:37.83 0.1 negative manual P 122 8.3805 139 0.23 95
IV.NRCA.HHZ. 2018-03-27T21:01:37.14 0.1 undecidable manual P 351 3.7962 159 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1214.EHN. ML:1.7 0.00076351955 0.1024 AML other m 2018-03-27T21:01:39.78
IV.T1214.HNN. ML:1.8 0.00080171645 0.1024 AML other m 2018-03-27T21:01:39.78
IV.T1214.HNE. ML:1.6 0.0005607442 0.1408 AML other m 2018-03-27T21:01:39.65
IV.T1214.EHE. ML:1.5 0.0004936211 0.1664 AML other m 2018-03-27T21:01:39.73
OB.GAVE.HNE. ML:1.5 0.00020602605 0.1536 AML other m 2018-03-27T21:01:44.51
OB.GAVE.EHE. ML:1.5 0.00019619429999999998 0.2432 AML other m 2018-03-27T21:01:44.70
OB.GAVE.EHN. ML:1.4 0.00017834335 0.2432 AML other m 2018-03-27T21:01:44.33
IV.MTRA.EHE. ML:1.4 0.00016470135 0.1408 AML other m 2018-03-27T21:01:44.56
IV.MTRA.HNN. ML:1.4 0.0001623021 0.2688 AML other m 2018-03-27T21:01:44.74
IV.MTRA.EHN. ML:1.4 0.00017287154999999998 0.1408 AML other m 2018-03-27T21:01:44.10
IV.MTRA.HNE. ML:1.4 0.00016934104 0.2048 AML other m 2018-03-27T21:01:45.02
IV.T1221.EHE. ML:1.0 0.0000663424 0.1408 AML other m 2018-03-27T21:01:44.44
IV.LNSS.HHE. ML:1.7 0.00030809245 0.1664 AML other m 2018-03-27T21:01:44.05
IV.LNSS.HHN. ML:1.7 0.00031827345000000004 0.1664 AML other m 2018-03-27T21:01:44.61
IV.T1299.EHE. ML:0.9 0.000053396859999999994 0.1408 AML other m 2018-03-27T21:01:44.72
IV.T1299.EHN. ML:1.0 0.000067397345 0.1792 AML other m 2018-03-27T21:01:44.39
IV.SMA1.EHE. ML:1.3 0.00012378980000000002 0.1664 AML other m 2018-03-27T21:01:45.68
IV.SMA1.EHN. ML:1.2 0.00008787722500000001 0.32 AML other m 2018-03-27T21:01:46.75
IV.CESI.HHN. ML:1.3 0.00010082329500000001 0.1408 AML other m 2018-03-27T21:01:46.04
IV.CESI.HHE. ML:1.0 0.000051999805 0.2176 AML other m 2018-03-27T21:01:45.26
IV.GUMA.HHE. ML:1.6 0.0001856071 0.32 AML other m 2018-03-27T21:01:47.58
IV.GUMA.HHN. ML:1.6 0.000167 0.18 AML other m 2018-03-27T21:01:47.68
IV.GUMA.HNE. ML:1.5 0.00014023939999999998 0.192 AML other m 2018-03-27T21:01:47.76
IV.MF5.EHE. ML:1.0 0.000041393895 0.2432 AML other m 2018-03-27T21:01:49.76
IV.MF5.EHN. ML:1.2 0.00006353630499999998 0.32 AML other m 2018-03-27T21:01:47.78
IV.TERO.HHE. ML:1.2 0.000055584764999999994 0.0896 AML other m 2018-03-27T21:01:49.64
IV.TERO.HHN. ML:1.2 0.000043369064999999995 0.1152 AML other m 2018-03-27T21:01:49.75
IV.MOMA.HHE. ML:1.3 0.00006073468 0.1536 AML other m 2018-03-27T21:01:51.05
IV.MOMA.HHN. ML:1.2 0.000051360965 0.2048 AML other m 2018-03-27T21:01:51.85
IV.SNTG.HHE. ML:1.0 0.000024175115 0.1408 AML other m 2018-03-27T21:01:52.59
IV.SNTG.HHN. ML:0.9 0.00001868774 0.128 AML other m 2018-03-27T21:01:52.89
IV.OFFI.HHN. ML:1.3 0.000056269850000000005 0.3072 AML other m 2018-03-27T21:01:54.64
IV.OFFI.HHE. ML:1.3 0.000050323275 0.4992 AML other m 2018-03-27T21:01:54.71
IV.EL6.EHN. ML:1.2 0.00003737867 0.2176 AML other m 2018-03-27T21:01:54.73
IV.EL6.EHE. ML:1.4 0.000048968164999999994 0.128 AML other m 2018-03-27T21:01:55.10
IV.FIAM.HHE. ML:0.8 0.000016639955 0.3072 AML other m 2018-03-27T21:01:55.58
IV.CING.HHN. ML:1.0 0.000021702485 0.128 AML other m 2018-03-27T21:01:56.67
IV.CING.HHE. ML:1.1 0.00002335856 0.0896 AML other m 2018-03-27T21:01:56.97
IV.ARVD.HHE. ML:0.8 0.000009871135 0.1024 AML other m 2018-03-27T21:02:00.67
IV.ARVD.HHN. ML:0.8 0.000008727908599999998 0.128 AML other m 2018-03-27T21:02:01.12
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