Earthquake with magnitude of ML 0.9 on date 13-08-2019 and time 03:27:25 (Italy) in region 6 km S Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 6 km S Norcia (PG), on

  • 13-08-2019 01:27:25 (UTC)
  • 13-08-2019 03:27:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.74, 13.09 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 6 4957 4957
Cascia PG 7 3217 8174
Poggiodomo PG 13 117 8291
Accumoli RI 14 667 8958
Cittareale RI 15 482 9440
Monteleone di Spoleto PG 15 599 10039
Preci PG 16 724 10763
Cerreto di Spoleto PG 17 1075 11838
Arquata del Tronto AP 17 1178 13016
Castelsantangelo sul Nera MC 18 281 13297
Vallo di Nera PG 19 364 13661

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SE of Foligno (57155 inhabitants)
42 Km E of Terni (111501 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
51 Km W of Teramo (54892 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
90 Km N of Tivoli (56533 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
97 Km W of Pescara (121014 inhabitants)
98 Km W 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 2019-08-13
01:27:25
42.74 13.09 11 2019-08-13
01:40:15
Sala Sismica INGV-Roma 71433331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-13 01:27:25 ± 0.04
Latitude 42.74 ± 0.00
Longitude 13.09 ± 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 71433331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 332
Semi-minor axis of confidence ellipse (meter) 267
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 19
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) 0.3939
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.5
Num. used stations 10
Type of magnitude ML
Reference to an origin 71433331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-13 01:40:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTRA.EHE. 2019-08-13T01:27:34.32 0.6 undecidable manual S 86 0.2239 50 0.07 48
IV.MMO1.EHZ. 2019-08-13T01:27:34.43 0.3 undecidable manual S 47 0.2338 50 -0.12 72
IV.MC2.EHZ. 2019-08-13T01:27:33.27 0.6 undecidable manual S 22 0.1844 117 0.26 47
IV.SMA1.EHZ. 2019-08-13T01:27:33.76 0.6 undecidable manual S 122 0.2095 50 -0.07 49
IV.TERO.HHZ. 2019-08-13T01:27:33.10 1.0 undecidable manual P 107 0.3939 50 -0.16 23
IV.CESI.HHE. 2019-08-13T01:27:31.80 0.1 undecidable manual P 333 0.2977 50 0.18 92
IV.GAVE.EHE. 2019-08-13T01:27:31.86 0.6 undecidable manual S 252 0.1538 122 -0.1 49
IV.LNSS.HHE. 2019-08-13T01:27:31.65 0.6 undecidable manual S 196 0.143 123 0.04 50
IV.ARRO.EHZ. 2019-08-13T01:27:31.26 0.3 undecidable manual P 236 0.2896 50 -0.21 70
IV.FDMO.HHE. 2019-08-13T01:27:31.51 0.6 undecidable manual P 359 0.2959 50 -0.07 48
IV.MMO1.EHZ. 2019-08-13T01:27:30.44 0.3 undecidable manual P 47 0.2338 50 -0.08 72
IV.RMP.HHZ. 2019-08-13T01:27:30.58 3.0 negative manual P 0 0
IV.MTRA.EHE. 2019-08-13T01:27:30.17 0.1 undecidable manual P 86 0.2239 50 -0.18 95
IV.SMA1.EHZ. 2019-08-13T01:27:30.40 0.6 undecidable manual P 122 0.2095 50 0.29 46
IV.T1299.EHE. 2019-08-13T01:27:29.65 0.6 undecidable manual P 127 0.1754 118 0.2 48
IV.MC2.EHZ. 2019-08-13T01:27:29.79 0.3 undecidable manual P 22 0.1844 117 0.16 72
IV.GAVE.EHE. 2019-08-13T01:27:29.08 0.3 undecidable manual P 252 0.1538 122 0.05 74
IV.NRCA.HHZ. 2019-08-13T01:27:29.98 0.3 undecidable manual S 10 0.0944 135 -0.17 72
IV.LNSS.HHE. 2019-08-13T01:27:28.84 0.1 undecidable manual P 196 0.143 123 0.01 100
IV.NRCA.HHZ. 2019-08-13T01:27:28.06 0.1 undecidable manual P 10 0.0944 135 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1 0.00013035595 0.1 AML other m 2019-08-13T01:27:30.21
IV.NRCA.HHN. ML:0.8 8.69593E-5 0.08 AML other m 2019-08-13T01:27:30.04
IV.NRCA.HNE. ML:1 0.000123307815 0.1696 AML other m 2019-08-13T01:27:30.17
IV.NRCA.HNN. ML:1.1 0.00015693017 1.1192 AML other m 2019-08-13T01:27:30.09
IV.SMA1.EHE. ML:0.4 1.46666525E-5 0.26 AML other m 2019-08-13T01:27:36.05
IV.SMA1.EHN. ML:0.2 1.1971635E-5 0.18 AML other m 2019-08-13T01:27:34.52
IV.RMP.HHE. ML:1.4 2.16367725E-5 0.28 AML other m 2019-08-13T01:27:39.86
IV.RMP.HHN. ML:1.4 2.5945025E-5 0.06 AML other m 2019-08-13T01:27:42.29
IV.ARRO.EHE. ML:0 6.4815175E-6 0.16 AML other m 2019-08-13T01:27:39.68
IV.ARRO.EHN. ML:0 6.881846E-6 0.2 AML other m 2019-08-13T01:27:36.66
IV.TERO.HHE. ML:0.2 4.364578E-6 0.8 AML other m 2019-08-13T01:27:58.37
IV.TERO.HHN. ML:0.2 4.691446E-6 0.08 AML other m 2019-08-13T01:27:40.69
IV.TERO.HNE. ML:2.2 0.0004895031 1.9304 AML other m 2019-08-13T01:28:07.84
IV.TERO.HNN. ML:1.4 7.35185E-5 0.7296 AML other m 2019-08-13T01:27:57.50
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