Earthquake with magnitude of ML 0.8 on date 09-08-2019 and time 02:53:39 (Italy) in region 3 km SE Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km SE Sellano (PG), on

  • 09-08-2019 00:53:39 (UTC)
  • 09-08-2019 02:53:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.87, 12.95 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
Sellano PG 3 1079 1079
Cerreto di Spoleto PG 6 1075 2154
Preci PG 8 724 2878
Vallo di Nera PG 13 364 3242
Visso MC 14 1107 4349
Campello sul Clitunno PG 15 2442 6791
Norcia PG 15 4957 11748
Monte Cavallo MC 15 145 11893
Trevi PG 16 8469 20362
Castelsantangelo sul Nera MC 17 281 20643
Poggiodomo PG 17 117 20760
Sant'Anatolia di Narco PG 17 564 21324
Cascia PG 17 3217 24541
Ussita MC 18 444 24985
Scheggino PG 20 461 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
53 Km SE of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
85 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 0.8 2019-08-09
00:53:39
42.87 12.95 8 2019-08-09
00:58:20
Sala Sismica INGV-Roma 71287311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-09 00:53:39 ± 0.08
Latitude 42.87 ± 0.00
Longitude 12.95 ± 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 71287311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 139
Semi-minor axis of confidence ellipse (meter) 111
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 140
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 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.05
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27249
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 71287311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-09 00:58:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2019-08-09T00:53:52.66 3.0 undecidable manual P -0.04 0
IV.ASSB.HHZ. 2019-08-09T00:53:50.44 0.6 undecidable manual S 310 0.2725 104 0.05 49
IV.FDMO.HHZ. 2019-08-09T00:53:47.66 0.6 undecidable manual S 32 0.1979 109 0.04 49
IV.GAVE.EHZ. 2019-08-09T00:53:46.89 0.6 undecidable manual S 192 0.1799 111 -0.06 49
IV.NRCA.HHZ. 2019-08-09T00:53:45.13 0.6 undecidable manual S 105 0.1286 118 -0.03 50
IV.ASSB.HHZ. 2019-08-09T00:53:45.78 0.1 undecidable manual P 310 0.2725 104 -0.03 97
IV.FDMO.HHZ. 2019-08-09T00:53:44.16 0.1 undecidable manual P 32 0.1979 109 -0.05 98
IV.GAVE.EHZ. 2019-08-09T00:53:43.87 0.1 undecidable manual P 192 0.1799 111 0.04 99
IV.NRCA.HHZ. 2019-08-09T00:53:42.83 0.1 undecidable manual P 105 0.1286 118 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1 0.0001166 0.16 AML other m 2019-08-09T00:53:45.24
IV.NRCA.HHE. ML:0.8 6.765E-5 0.12 AML other m 2019-08-09T00:53:46.56
IV.GAVE.EHN. ML:0.6 3.16E-5 0.16 AML other m 2019-08-09T00:53:47.11
IV.GAVE.EHE. ML:0.9 6.41E-5 0.16 AML other m 2019-08-09T00:53:47.30
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