Earthquake with magnitude of ML 1.0 on date 21-10-2018 and time 03:11:29 (Italy) in region Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: Norcia (PG), on

  • 21-10-2018 01:11:29 (UTC)
  • 21-10-2018 03:11:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8, 13.1 at 11 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 0 4957 4957
Preci PG 11 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Cerreto di Spoleto PG 15 1075 10254
Visso MC 15 1107 11361
Poggiodomo PG 16 117 11478
Arquata del Tronto AP 17 1178 12656
Accumoli RI 17 667 13323
Ussita MC 17 444 13767
Sellano PG 17 1079 14846
Vallo di Nera PG 19 364 15210
Monteleone di Spoleto PG 20 599 15809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
99 Km W of Pescara (121014 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 1.0 2018-10-21
01:11:29
42.8 13.1 11 2018-10-21
01:17:14
Sala Sismica INGV-Roma 62155721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-21 01:11:29 ± 0.04
Latitude 42.80 ± 0.00
Longitude 13.10 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 62155721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 295
Semi-minor axis of confidence ellipse (meter) 202
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 62155721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-21 01:17:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RMP.HHZ. 2018-10-21T01:12:00.97 3.0 undecidable manual S -0.44 0
IV.TERO.HHZ. 2018-10-21T01:11:44.46 0.6 undecidable manual S 115 0.411 50 -0.13 46
IV.RM33.EHZ. 2018-10-21T01:11:41.37 0.6 undecidable manual S 163 0.2986 50 0.09 49
IV.GUMA.HHE. 2018-10-21T01:11:41.65 0.6 undecidable manual S 33 0.3193 50 -0.23 46
IV.CESI.HHZ. 2018-10-21T01:11:39.86 0.6 undecidable manual S 326 0.2518 50 -0.03 49
IV.FDMO.HHZ. 2018-10-21T01:11:39.63 0.6 undecidable manual S 358 0.241 50 0.07 50
IV.SMA1.EHZ. 2018-10-21T01:11:39.63 0.6 undecidable manual S 133 0.241 50 0.08 49
IV.TERO.HHZ. 2018-10-21T01:11:38.60 0.6 undecidable manual P 115 0.411 50 0.22 48
IV.MMO1.EHZ. 2018-10-21T01:11:38.28 0.6 undecidable manual S 58 0.1988 50 -0.02 49
IV.T1299.HNE. 2018-10-21T01:11:38.30 0.6 undecidable manual S 140 0.2113 50 -0.37 44
IV.MTRA.EHZ. 2018-10-21T01:11:38.98 0.6 undecidable manual S 100 0.2239 50 -0.06 48
IV.LNSS.HHN. 2018-10-21T01:11:38.32 0.6 undecidable manual S 192 0.197 50 0.08 50
IV.GUMA.HHE. 2018-10-21T01:11:37.00 0.1 undecidable manual P 33 0.3193 50 0.18 97
IV.GAVE.EHZ. 2018-10-21T01:11:37.79 0.6 undecidable manual S 235 0.1808 50 0.02 50
IV.MOMA.HHE. 2018-10-21T01:11:37.95 0.1 undecidable manual P 271 0.3858 50 -0.01 95
IV.FEMA.HNN. 2018-10-21T01:11:36.63 0.6 undecidable manual S 348 0.17 120 -0.82 41
IV.MC2.EHZ. 2018-10-21T01:11:36.50 0.6 undecidable manual S 30 0.1349 126 0.2 49
IV.RM33.EHZ. 2018-10-21T01:11:36.51 1.0 undecidable manual P 163 0.2986 50 0.04 24
IV.FDMO.HHZ. 2018-10-21T01:11:35.43 0.1 undecidable manual P 358 0.241 50 -0.05 98
IV.SMA1.EHZ. 2018-10-21T01:11:35.54 0.6 undecidable manual P 133 0.241 50 0.07 49
IV.CESI.HHZ. 2018-10-21T01:11:35.62 0.1 undecidable manual P 326 0.2518 50 -0.05 97
IV.MTRA.EHZ. 2018-10-21T01:11:35.27 0.1 undecidable manual P 100 0.2239 50 0.09 100
IV.GAVE.EHZ. 2018-10-21T01:11:34.63 0.6 undecidable manual P 235 0.1808 50 0.19 50
IV.FEMA.HNN. 2018-10-21T01:11:34.54 0.1 undecidable manual P 348 0.17 120 0.28 96
IV.MMO1.EHZ. 2018-10-21T01:11:34.65 1.0 positive manual P 58 0.1988 50 -0.1 24
IV.T1299.HNE. 2018-10-21T01:11:34.88 0.1 undecidable manual P 140 0.2113 50 -0.09 96
IV.LNSS.HHN. 2018-10-21T01:11:34.66 0.1 undecidable manual P 192 0.197 50 -0.06 98
IV.MC2.EHZ. 2018-10-21T01:11:33.76 0.1 undecidable manual P 30 0.1349 126 0.17 99
IV.NRCA.HHZ. 2018-10-21T01:11:33.76 0.6 undecidable manual S 19 0.0405 157 -0.2 51
IV.NRCA.HHZ. 2018-10-21T01:11:32.38 0.3 undecidable manual P 19 0.0405 157 0.13 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.6 0.000661 0.06 AML other m 2018-10-21T01:11:33.84
IV.NRCA.HHE. ML:1.9 0.001375 0.08 AML other m 2018-10-21T01:11:33.92
IV.GAVE.EHE. ML:0.9 6.05E-5 1.3 AML other m 2018-10-21T01:11:38.97
IV.GAVE.EHN. ML:1 7.62E-5 0.16 AML other m 2018-10-21T01:11:38.59
IV.MTRA.EHN. ML:0.9 5.205E-5 0.7 AML other m 2018-10-21T01:11:39.76
IV.MTRA.EHE. ML:0.9 4.925E-5 0.42 AML other m 2018-10-21T01:11:39.58
IV.FDMO.HHN. ML:0.7 2.8E-5 0.4 AML other m 2018-10-21T01:11:40.05
IV.FDMO.HHE. ML:0.6 2.225E-5 0.68 AML other m 2018-10-21T01:11:40.50
IV.TERO.HHN. ML:0.9 2.465E-5 0.78 AML other m 2018-10-21T01:11:45.74
IV.TERO.HHE. ML:1.1 3.52E-5 1.36 AML other m 2018-10-21T01:11:45.81
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