Earthquake with magnitude of ML 0.8 on date 28-08-2018 and time 21:51:16 (Italy) in region 8 km NW Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 8 km NW Sellano (PG), on

  • 28-08-2018 19:51:16 (UTC)
  • 28-08-2018 21:51:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.96, 12.88 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
Sellano PG 8 1079 1079
Monte Cavallo MC 11 145 1224
Trevi PG 14 8469 9693
Serravalle di Chienti MC 14 1070 10763
Foligno PG 14 57155 67918
Cerreto di Spoleto PG 15 1075 68993
Preci PG 15 724 69717
Valtopina PG 16 1398 71115
Pieve Torina MC 17 1458 72573
Campello sul Clitunno PG 17 2442 75015
Visso MC 17 1107 76122
Spello PG 18 8645 84767
Nocera Umbra PG 19 5839 90606
Fiordimonte MC 19 202 90808
Muccia MC 20 915 91723
Montefalco PG 20 5679 97402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
75 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
99 Km SE of Arezzo (99543 inhabitants)
100 Km S of Fano (60888 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 2018-08-28
19:51:16
42.95 12.88 10 2018-08-28
19:58:19
Sala Sismica INGV-Roma 60307941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-28 19:51:16 ± 0.06
Latitude 42.95 ± 0.00
Longitude 12.88 ± 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 60307941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 457
Semi-minor axis of confidence ellipse (meter) 336
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 36
Circular confidence region, given by single value of horizontal uncertainty (meter) 460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29048
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 60307941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-28 19:58:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VARE.HHZ. 2018-08-28T19:53:08.01 3.0 undecidable manual Sn 1.68 0
IV.CRJA.HHZ. 2018-08-28T19:52:50.52 3.0 undecidable manual Pg 17.23 0
IV.SARZ.HHZ. 2018-08-28T19:52:48.81 3.0 undecidable manual Sn -0.42 0
IV.IVPL.HHZ. 2018-08-28T19:52:45.97 3.0 undecidable manual Pg 16.540001 0
IV.CRTO.HHZ. 2018-08-28T19:52:36.21 3.0 undecidable manual Sg 8.34 0
CR.STON.BHZ. 2018-08-28T19:52:20.94 3.0 positive manual Pg 9.14 0
IV.EUCT.HNZ. 2018-08-28T19:52:17.59 3.0 undecidable manual Pg 8.34 0
MN.CUC.HHZ. 2018-08-28T19:52:12.31 3.0 positive manual Pn -1.48 0
MN.TRI.HHZ. 2018-08-28T19:52:02.10 3.0 positive manual Pg 1.4 0
IV.MBAL.EHZ. 2018-08-28T19:52:01.04 3.0 undecidable manual Pn -2.78 0
IV.LIK.EHZ.01 2018-08-28T19:51:46.63 3.0 undecidable manual Pg 2.57 0
IV.ATCC.EHZ. 2018-08-28T19:51:27.56 0.3 undecidable manual S 323 0.2905 50 0.23 72
OB.GAVE.EHZ. 2018-08-28T19:51:26.45 0.3 undecidable manual S 178 0.2626 50 -0.06 74
IV.MML1.HNZ. 2018-08-28T19:51:23.55 0.3 undecidable manual S 22 0.1718 119 -0.12 75
IV.FDMO.HHZ. 2018-08-28T19:51:23.33 0.3 undecidable manual S 61 0.1709 119 -0.31 72
IV.ASSB.HHZ. 2018-08-28T19:51:23.89 0.3 undecidable manual S 298 0.1853 117 -0.24 73
OB.GAVE.EHZ. 2018-08-28T19:51:22.00 0.3 undecidable manual P 178 0.2626 50 -0.13 73
IV.ATCC.EHZ. 2018-08-28T19:51:22.52 0.3 undecidable manual P 323 0.2905 50 -0.08 74
IV.CSP1.EHZ. 2018-08-28T19:51:22.36 3.0 undecidable manual P -0.88 0
IV.FEMA.HNZ. 2018-08-28T19:51:22.24 0.3 undecidable manual S 87 0.1232 127 0.15 75
IV.FDMO.HHZ. 2018-08-28T19:51:20.43 0.3 undecidable manual P 61 0.1709 119 -0.04 76
IV.ASSB.HHZ. 2018-08-28T19:51:20.83 0.3 undecidable manual P 298 0.1853 117 0.08 75
IV.CESI.HHZ. 2018-08-28T19:51:20.31 0.3 undecidable manual S 18 0.0531 151 0.03 78
IV.MML1.HNZ. 2018-08-28T19:51:20.46 0.3 undecidable manual P 22 0.1718 119 -0.02 76
IV.FEMA.HNZ. 2018-08-28T19:51:19.74 0.3 undecidable manual P 87 0.1232 127 0.17 75
IV.CESI.HHZ. 2018-08-28T19:51:18.75 0.1 undecidable manual P 18 0.0531 151 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.000119 0.1 AML other m 2018-08-28T19:51:20.42
IV.CESI.HHN. ML:1.1 0.0002005 0.28 AML other m 2018-08-28T19:51:20.54
IV.FDMO.HHE. ML:0.7 3.43E-5 0.28 AML other m 2018-08-28T19:51:23.44
IV.FDMO.HHN. ML:0.6 2.875E-5 0.36 AML other m 2018-08-28T19:51:23.44
IV.ASSB.HHE. ML:0.9 5.555E-5 0.16 AML other m 2018-08-28T19:51:24.08
IV.ASSB.HHN. ML:0.8 4.255E-5 0.34 AML other m 2018-08-28T19:51:24.10
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