Earthquake with magnitude of ML 0.9 on date 22-10-2019 and time 18:03:41 (Italy) in region 5 km E Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km E Norcia (PG), on

  • 22-10-2019 16:03:41 (UTC)
  • 22-10-2019 18:03:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.15 at 12 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 11 281 5238
Arquata del Tronto AP 12 1178 6416
Preci PG 13 724 7140
Accumoli RI 14 667 7807
Cascia PG 14 3217 11024
Montegallo AP 16 523 11547
Visso MC 16 1107 12654
Ussita MC 17 444 13098
Montemonaco AP 19 604 13702
Cerreto di Spoleto PG 19 1075 14777
Cittareale RI 19 482 15259
Poggiodomo PG 20 117 15376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
94 Km W of Pescara (121014 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 inhabitants)
97 Km NW of Chieti (51815 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 0.9 2019-10-22
16:03:41
42.79 13.15 12 2019-10-22
16:18:21
Sala Sismica INGV-Roma 73393781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-22 16:03:41 ± 0.07
Latitude 42.79 ± 0.00
Longitude 13.15 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73393781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 443
Semi-minor axis of confidence ellipse (meter) 131
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
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) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37412
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 73393781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-22 16:18:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2019-10-22T16:03:56.40 3.0 undecidable manual P -0.07 0
IV.TERO.HHZ. 2019-10-22T16:03:55.05 0.6 undecidable manual S 117 0.3741 91 -0.01 47
IV.CSP1.EHZ. 2019-10-22T16:03:53.10 0.6 undecidable manual S 8 0.3013 92 0.21 46
IV.RM33.EHZ. 2019-10-22T16:03:52.67 0.6 undecidable manual S 171 0.2878 92 0.17 46
IV.FDMO.HHZ. 2019-10-22T16:03:51.27 0.6 undecidable manual S 349 0.2473 92 -0.04 48
IV.TERO.HHZ. 2019-10-22T16:03:49.15 0.6 undecidable manual P 117 0.3741 91 -0.19 45
IV.CSP1.EHZ. 2019-10-22T16:03:48.05 0.6 negative manual P 8 0.3013 92 -0.04 48
IV.MMO1.EHZ. 2019-10-22T16:03:48.85 0.6 undecidable manual S 51 0.1673 96 -0.09 48
IV.RM33.EHZ. 2019-10-22T16:03:48.06 1.0 negative manual P 171 0.2878 92 0.2 23
IV.MC2.EHZ. 2019-10-22T16:03:47.83 0.6 undecidable manual S 14 0.1214 109 0.22 48
IV.FDMO.HHZ. 2019-10-22T16:03:46.88 0.6 negative manual P 349 0.2473 92 -0.29 46
IV.MMO1.EHZ. 2019-10-22T16:03:45.83 0.3 positive manual P 51 0.1673 96 0.03 73
IV.NRCA.HHZ. 2019-10-22T16:03:45.67 0.6 undecidable manual S 327 0.0486 148 -0.24 48
IV.MC2.EHZ. 2019-10-22T16:03:45.21 1.0 undecidable manual P 14 0.1214 109 0.18 24
IV.NRCA.HHZ. 2019-10-22T16:03:44.08 0.1 undecidable manual P 327 0.0486 148 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.00023795605 0.192 AML other m 2019-10-22T16:03:45.80
IV.NRCA.HHN. ML:1.1 0.0001666926 0.064 AML other m 2019-10-22T16:03:46.38
IV.NRCA.HNE. ML:1.2 0.00022119265 0.1792 AML other m 2019-10-22T16:03:45.80
IV.NRCA.HNN. ML:1 0.00014809885 0.064 AML other m 2019-10-22T16:03:46.41
IV.FDMO.HHE. ML:0.5 1.68255525E-5 0.2304 AML other m 2019-10-22T16:03:51.37
IV.FDMO.HHN. ML:0.5 1.6148425E-5 0.1024 AML other m 2019-10-22T16:03:51.69
IV.CSP1.EHE. ML:0.7 2.1455958E-5 0.6528 AML other m 2019-10-22T16:04:00.95
IV.CSP1.EHN. ML:0.8 2.354339E-5 1.0752 AML other m 2019-10-22T16:04:05.27
IV.TERO.HHE. ML:0.7 1.56997321E-5 0.128 AML other m 2019-10-22T16:03:55.40
IV.TERO.HHN. ML:0.8 1.8229978E-5 0.1152 AML other m 2019-10-22T16:03:55.94
IV.TERO.HNE. ML:1.3 5.9690345E-5 1.0368 AML other m 2019-10-22T16:03:55.72
IV.TERO.HNN. ML:1.3 6.6974805E-5 0.8064 AML other m 2019-10-22T16:04:06.59
IV.APEC.HHE. ML:2.3 0.0001831853 0.064 AML other m 2019-10-22T16:03:57.88
IV.APEC.HHN. ML:2.1 0.0001262761 0.0768 AML other m 2019-10-22T16:03:57.89
IV.APEC.HNE. ML:3 0.0008811366 0.768 AML other m 2019-10-22T16:04:20.02
IV.APEC.HNN. ML:3 0.00107496145 1.5872 AML other m 2019-10-22T16:04:18.56
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