Earthquake with magnitude of ML 1.2 on date 26-09-2020 and time 01:17:36 (UTC) in region 5 km E Norcia (PG)

A magnitude ML 1.2 earthquake occured in region: 5 km E Norcia (PG), on

  • 26-09-2020 01:17:36 (UTC)
  • 26-09-2020 03:17:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8, 13.15 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 5 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 12 724 5962
Arquata del Tronto AP 13 1178 7140
Cascia PG 14 3217 10357
Accumoli RI 15 667 11024
Visso MC 15 1107 12131
Ussita MC 16 444 12575
Montegallo AP 16 523 13098
Montemonaco AP 18 604 13702
Cerreto di Spoleto PG 19 1075 14777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
95 Km W of Pescara (121014 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
98 Km NE of Tivoli (56533 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
Reviewed
Rev100
ML 1.2 2020-09-26
01:17:36
42.8 13.15 10 2020-09-26
01:32:41
Sala Sismica INGV-Roma 83258701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-26 01:17:36 ± 0.05
Latitude 42.80 ± 0.00
Longitude 13.15 ± 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 83258701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 124
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 24
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
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 83258701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-26 01:32:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SALB.HHZ. 2020-09-26T01:19:31.55 3.0 undecidable manual Sg 14.66 0
IV.MTGR.HHZ. 2020-09-26T01:19:05.26 3.0 positive manual Pg 18.76 0
IV.MAGA.HHZ. 2020-09-26T01:19:04.42 3.0 undecidable manual Sn 2.25 0
IV.MCRV.HHZ. 2020-09-26T01:18:55.74 3.0 undecidable manual Sg 9.8 0
IV.PLAC.HNZ. 2020-09-26T01:18:53.27 3.0 undecidable manual Pn 4.8 0
CH.PLONS.HHZ. 2020-09-26T01:18:43.23 3.0 undecidable manual Pn -1.22 0
IV.VITU.HHZ. 2020-09-26T01:18:39.32 3.0 undecidable manual Sg 7.1 0
IV.BSSO.HHZ. 2020-09-26T01:18:23.93 3.0 undecidable manual Sn -0.81 0
IV.SEI.HHZ. 2020-09-26T01:18:19.78 3.0 undecidable manual Sn -1.51 0
IV.SGO.HHZ. 2020-09-26T01:18:17.27 3.0 positive manual Pn -0.27 0
IV.VULT.HHZ. 2020-09-26T01:18:14.18 3.0 undecidable manual Pn -1.23 0
IV.RMP.HHZ. 2020-09-26T01:18:08.47 3.0 undecidable manual S 0.18 0
IV.FIR.HHZ. 2020-09-26T01:18:03.95 3.0 undecidable manual Pg 5.14 0
IV.MML1.HNZ. 2020-09-26T01:17:49.56 0.3 undecidable manual S 337 0.3345 50 0 74
IV.RM33.EHZ. 2020-09-26T01:17:48.32 0.3 undecidable manual S 171 0.2995 50 -0.18 72
IV.MF5.EHZ. 2020-09-26T01:17:48.69 0.3 undecidable manual S 51 0.2932 50 0.37 69
IV.CESI.HHZ. 2020-09-26T01:17:47.57 0.3 undecidable manual S 319 0.268 50 -0.01 75
IV.FDMO.HHZ. 2020-09-26T01:17:46.20 0.3 undecidable manual S 349 0.2365 110 -0.31 71
IV.T1299.HNN. 2020-09-26T01:17:45.42 0.3 undecidable manual S 150 0.197 114 0.32 71
IV.LNSS.HHZ. 2020-09-26T01:17:45.90 0.6 undecidable manual S 201 0.2158 112 0.11 50
IV.SMA1.EHZ. 2020-09-26T01:17:45.88 0.6 undecidable manual S 141 0.2221 111 -0.11 49
IV.MTRA.EHZ. 2020-09-26T01:17:44.37 0.6 undecidable manual S 105 0.1889 114 -0.45 46
IV.MML1.HNZ. 2020-09-26T01:17:44.02 0.3 undecidable manual P 337 0.3345 50 -0.16 72
IV.MF5.EHZ. 2020-09-26T01:17:44.01 0.6 undecidable manual P 51 0.2932 50 0.54 44
IV.RM33.EHZ. 2020-09-26T01:17:43.47 0.3 undecidable manual P 171 0.2995 50 -0.1 73
IV.MMO1.EHZ. 2020-09-26T01:17:43.57 0.6 undecidable manual S 54 0.1619 118 -0.33 48
IV.FDMO.HHZ. 2020-09-26T01:17:42.20 0.3 undecidable manual P 349 0.2365 110 -0.22 72
IV.CESI.HHZ. 2020-09-26T01:17:42.95 0.1 undecidable manual P 319 0.268 50 -0.09 99
IV.LNSS.HHZ. 2020-09-26T01:17:42.10 0.1 undecidable manual P 201 0.2158 112 0.09 99
IV.MC2.EHZ. 2020-09-26T01:17:42.54 0.3 undecidable manual S 16 0.1115 128 0.29 73
IV.MTRA.EHZ. 2020-09-26T01:17:41.18 0.3 undecidable manual P 105 0.1889 114 -0.26 72
IV.T1299.HNN. 2020-09-26T01:17:41.71 0.1 undecidable manual P 150 0.197 114 0.1 100
IV.SMA1.EHZ. 2020-09-26T01:17:41.90 0.3 undecidable manual P 141 0.2221 111 -0.22 73
IV.MC2.EHZ. 2020-09-26T01:17:40.20 0.3 undecidable manual P 16 0.1115 128 0.24 74
IV.NRCA.HNZ. 2020-09-26T01:17:40.37 0.3 undecidable manual S 320 0.0378 156 -0.08 77
IV.MMO1.EHZ. 2020-09-26T01:17:40.96 0.3 undecidable manual P 54 0.1619 118 0.05 76
IV.NRCA.HNZ. 2020-09-26T01:17:39.15 0.1 undecidable manual P 320 0.0378 156 0.23 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2 0.001785 0.16 AML other m 2020-09-26T01:17:40.53
IV.NRCA.HHE. ML:2 0.001805 0.16 AML other m 2020-09-26T01:17:40.53
IV.NRCA.HHN. ML:1.8 0.001335 0.16 AML other m 2020-09-26T01:17:40.53
IV.NRCA.HNN. ML:1.8 0.001125 0.18 AML other m 2020-09-26T01:17:40.44
IV.MTRA.EHE. ML:1.3 0.00014938065 1.74 AML other m 2020-09-26T01:17:44.49
IV.MTRA.EHN. ML:1.1 9.292895E-5 0.42 AML other m 2020-09-26T01:17:45.00
IV.MTRA.HNE. ML:1.4 0.0001776154 0.2696 AML other m 2020-09-26T01:17:44.49
IV.MTRA.HNN. ML:1.2 0.000110852435 1.0592 AML other m 2020-09-26T01:17:44.95
IV.SMA1.EHE. ML:1.1 7.080257E-5 1.1 AML other m 2020-09-26T01:17:46.64
IV.SMA1.EHN. ML:1.2 8.800695E-5 1.74 AML other m 2020-09-26T01:17:46.73
IV.LNSS.HNE. ML:1.1 8.745972E-5 1.34 AML other m 2020-09-26T01:17:46.56
IV.LNSS.HNN. ML:1.4 0.00014343855 1.0896 AML other m 2020-09-26T01:17:46.43
IV.LNSS.HHE. ML:1 7.1494075E-5 0.18 AML other m 2020-09-26T01:17:46.56
IV.LNSS.HHN. ML:1.2 9.47073E-5 1.34 AML other m 2020-09-26T01:17:46.12
IV.FDMO.HHE. ML:1 5.4052285E-5 1.34 AML other m 2020-09-26T01:17:47.02
IV.FDMO.HHN. ML:0.9 4.27674895E-5 0.18 AML other m 2020-09-26T01:17:46.45
IV.CESI.HHE. ML:1.3 9.324984E-5 0.14 AML other m 2020-09-26T01:17:47.72
IV.CESI.HHN. ML:1.4 0.000112087495 0.14 AML other m 2020-09-26T01:17:47.74
IV.CESI.HNE. ML:1.4 0.0001133399 0.96 AML other m 2020-09-26T01:17:48.10
IV.CESI.HNN. ML:1.6 0.000180440515 0.2504 AML other m 2020-09-26T01:17:47.92
IV.RM33.HNN. ML:1.4 0.00010621792 2.1 AML other m 2020-09-26T01:17:49.64
IV.RM33.EHE. ML:1.1 4.9575295E-5 1.8 AML other m 2020-09-26T01:17:48.86
IV.RM33.EHN. ML:1.1 5.6336936E-5 1.46 AML other m 2020-09-26T01:17:49.15
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