Earthquake with magnitude of ML 1.3 on date 08-03-2018 and time 05:39:53 (Italy) in region 4 km SW Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km SW Norcia (PG), on

  • 08-03-2018 04:39:53 (UTC)
  • 08-03-2018 05:39:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7580, 13.0740 at 11 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.

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 4 4957 4957
Cascia PG 7 3217 8174
Poggiodomo PG 12 117 8291
Preci PG 14 724 9015
Cerreto di Spoleto PG 15 1075 10090
Monteleone di Spoleto PG 15 599 10689
Accumoli RI 16 667 11356
Castelsantangelo sul Nera MC 17 281 11637
Cittareale RI 17 482 12119
Vallo di Nera PG 17 364 12483
Arquata del Tronto AP 18 1178 13661
Sellano PG 19 1079 14740
Visso MC 19 1107 15847
Sant'Anatolia di Narco PG 20 564 16411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SE of Foligno (57155 inhabitants)
41 Km NE of Terni (111501 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
53 Km W of Teramo (54892 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
99 Km W of Pescara (121014 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 2018-03-08
04:39:53
42.7578 13.0738 11 2019-04-24
14:49:30
Bollettino Sismico Italiano INGV 56469441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-08 04:39:53 ± 0.03
Latitude 42.7578 ± 0.0018
Longitude 13.0738 ± 0.0024
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56469441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 247
Semi-minor axis of confidence ellipse (meter) 178
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
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 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 11
Type of magnitude ML
Reference to an origin 56469441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-04 10:14:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2018-03-08T04:40:08.24 3.0 negative manual P 0.02 0
IV.CESI.HHE. 2018-03-08T04:40:04.15 0.1 undecidable manual S 333 30.6471 50 0.1 96
IV.MMO1.EHZ. 2018-03-08T04:40:02.63 0.3 undecidable manual S 53 25.8519 50 -0.14 72
OB.GAVE.EHZ. 2018-03-08T04:40:00.12 0.3 undecidable manual S 244 16.3725 123 -0.01 75
IV.LNSS.HHZ. 2018-03-08T04:40:00.32 0.3 undecidable manual S 189 17.3715 122 -0.12 73
IV.CESI.HHE. 2018-03-08T04:39:59.40 0.3 undecidable manual P 333 30.6471 50 -0.12 72
IV.NRCA.HHZ. 2018-03-08T04:39:58.06 0.1 undecidable manual S 21 8.9799 140 -0.14 99
IV.SMA1.EHZ. 2018-03-08T04:39:58.77 0.3 undecidable manual P 123 25.5522 50 0.03 74
IV.T1214.EHZ. 2018-03-08T04:39:58.75 0.1 undecidable manual S 89 10.9779 134 0.08 100
IV.MMO1.EHZ. 2018-03-08T04:39:58.81 0.1 undecidable manual P 53 25.8519 50 0.03 98
IV.MC2.EHZ. 2018-03-08T04:39:57.75 0.1 undecidable manual P 29 19.4694 119 -0.03 99
IV.LNSS.HHZ. 2018-03-08T04:39:57.37 0.1 undecidable manual P 189 17.3715 122 -0.06 99
OB.GAVE.EHZ. 2018-03-08T04:39:57.35 0.1 undecidable manual P 244 16.3725 123 0.09 98
IV.NRCA.HHZ. 2018-03-08T04:39:56.22 0.1 positive manual P 21 8.9799 140 0.08 100
IV.T1214.EHZ. 2018-03-08T04:39:56.58 0.3 negative manual P 89 10.9779 134 0.17 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OB.GAVE.EHN. ML:1.2 0.000144 0.9 AML other m 2018-03-08T04:40:00.32
IV.NRCA.HHE. ML:1.4 0.000298 0.1 AML other m 2018-03-08T04:39:58.22
OB.GAVE.EHE. ML:1.2 0.0001416 0.2 AML other m 2018-03-08T04:40:00.67
IV.NRCA.HNE. ML:1.4 0.00029879315 0.1088 AML other m 2018-03-08T04:39:58.22
IV.NRCA.HNN. ML:1.5 0.00038087079999999995 0.1408 AML other m 2018-03-08T04:39:58.22
IV.T1214.EHN. ML:1.2 0.00017134790500000001 0.128 AML other m 2018-03-08T04:39:59.12
IV.T1214.HNN. ML:1.2 0.0001678638 0.112 AML other m 2018-03-08T04:39:59.12
IV.T1214.HNE. ML:1.2 0.00020090275000000002 0.144 AML other m 2018-03-08T04:39:58.92
IV.T1214.EHE. ML:1.2 0.00018751279000000002 0.16 AML other m 2018-03-08T04:39:58.92
OB.GAVE.HNE. ML:1.2 0.0001433941 0.2176 AML other m 2018-03-08T04:40:00.88
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