Earthquake with magnitude of ML 0.9 on date 29-08-2019 and time 19:58:15 (Italy) in region 7 km SE Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 7 km SE Norcia (PG), on

  • 29-08-2019 17:58:15 (UTC)
  • 29-08-2019 19:58:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.74, 13.13 at 8 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 7 4957 4957
Cascia PG 10 3217 8174
Accumoli RI 11 667 8841
Cittareale RI 14 482 9323
Arquata del Tronto AP 14 1178 10501
Poggiodomo PG 16 117 10618
Preci PG 17 724 11342
Castelsantangelo sul Nera MC 17 281 11623
Monteleone di Spoleto PG 18 599 12222
Amatrice RI 18 2657 14879
Cerreto di Spoleto PG 20 1075 15954
Montegallo AP 20 523 16477

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SE of Foligno (57155 inhabitants)
44 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
73 Km SE of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
94 Km W of Pescara (121014 inhabitants)
95 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 2019-08-29
17:58:15
42.74 13.13 8 2019-08-29
18:01:21
Sala Sismica INGV-Roma 71919621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-29 17:58:15 ± 0.1
Latitude 42.74 ± 0.00
Longitude 13.13 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71919621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 177
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 204
Circular confidence region, given by single value of horizontal uncertainty (meter) 180
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.18526
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 71919621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-29 18:01:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSFR.HNZ. 2019-08-29T17:58:36.29 3.0 undecidable manual S 0.03 0
IV.PARC.HHZ. 2019-08-29T17:58:30.76 3.0 negative manual P -0.26 0
IV.ARVD.HHZ. 2019-08-29T17:58:28.15 3.0 undecidable manual P 1.81 0
IV.GAVE.EHZ. 2019-08-29T17:58:22.59 0.1 undecidable manual S 254 0.1817 110 0.02 99
IV.SMA1.EHZ. 2019-08-29T17:58:22.73 0.3 undecidable manual S 127 0.1853 110 0.03 74
IV.GAVE.EHZ. 2019-08-29T17:58:19.39 0.1 undecidable manual P 254 0.1817 110 -0.03 99
IV.SMA1.EHZ. 2019-08-29T17:58:19.46 0.1 undecidable manual P 127 0.1853 110 -0.03 99
IV.NRCA.HHZ. 2019-08-29T17:58:19.48 0.3 undecidable manual S 352 0.0935 126 -0.04 75
IV.NRCA.HHZ. 2019-08-29T17:58:17.72 0.1 undecidable manual P 352 0.0935 126 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.0002525 0.14 AML other m 2019-08-29T17:58:19.64
IV.NRCA.HHE. ML:1.2 0.000248 0.08 AML other m 2019-08-29T17:58:19.81
IV.SMA1.EHN. ML:0.7 4.07E-5 0.18 AML other m 2019-08-29T17:58:23.27
IV.SMA1.EHE. ML:0.8 4.785E-5 0.22 AML other m 2019-08-29T17:58:23.38
IV.GAVE.EHN. ML:0.8 4.6E-5 0.3 AML other m 2019-08-29T17:58:23.79
IV.GAVE.EHE. ML:0.8 4.285E-5 0.2 AML other m 2019-08-29T17:58:25.39
IV.MF5.EHE. ML:0.9 3.0E-5 0.82 AML other m 2019-08-29T17:58:33.58
IV.MF5.EHN. ML:0 4.325E-5 0.42 AML other m 2019-08-29T17:58:40.53
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