Earthquake with magnitude of ML 1.1 on date 26-08-2020 and time 06:19:12 (Italy) in region 5 km NW Sellano (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km NW Sellano (PG), on

  • 26-08-2020 04:19:12 (UTC)
  • 26-08-2020 06:19:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.93, 12.9 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 5 1079 1079
Monte Cavallo MC 11 145 1224
Cerreto di Spoleto PG 12 1075 2299
Preci PG 13 724 3023
Trevi PG 13 8469 11492
Campello sul Clitunno PG 15 2442 13934
Visso MC 16 1107 15041
Foligno PG 16 57155 72196
Serravalle di Chienti MC 17 1070 73266
Vallo di Nera PG 18 364 73630
Pieve Torina MC 18 1458 75088
Valtopina PG 19 1398 76486
Ussita MC 20 444 76930
Spello PG 20 8645 85575
Fiordimonte MC 20 202 85777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
46 Km E of Perugia (166134 inhabitants)
72 Km W of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
92 Km SW of Ancona (100861 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
Reviewed
Rev100
ML 1.1 2020-08-26
04:19:12
42.93 12.9 10 2020-08-26
04:29:00
Sala Sismica INGV-Roma 82336351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-26 04:19:12 ± 0.06
Latitude 42.93 ± 0.00
Longitude 12.90 ± 0.00
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82336351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 513
Semi-minor axis of confidence ellipse (meter) 331
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32016
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 82336351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-26 04:29:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RNCA.HHZ. 2020-08-26T04:20:56.36 3.0 undecidable manual Sg 16.700001 0
IV.MTGR.HHZ. 2020-08-26T04:20:28.71 3.0 undecidable manual Pn 3.07 0
AC.VLO.HHZ. 2020-08-26T04:20:25.32 3.0 negative manual Pn -3.16 0
IV.SBPO.HNZ. 2020-08-26T04:20:17.09 3.0 undecidable manual Sn -2.76 0
IV.MILN.HNZ. 2020-08-26T04:20:14.80 3.0 undecidable manual Pg 9.8 0
IV.SCHR.EHZ. 2020-08-26T04:20:00.67 3.0 positive manual Pn -3.22 0
IV.ZONE.HHZ. 2020-08-26T04:19:57.91 3.0 undecidable manual Pn -3.66 0
IV.LRP.EHZ. 2020-08-26T04:19:52.42 3.0 undecidable manual Sn -1.46 0
IV.MRB1.HHZ. 2020-08-26T04:19:48.04 3.0 negative manual Pn 1.16 0
IV.LAV9.HNZ. 2020-08-26T04:19:35.60 3.0 positive manual Pg 1.38 0
IV.ROSPO.HHZ. 2020-08-26T04:19:35.21 3.0 negative manual Pn -0.34 0
IV.SRES.HHZ. 2020-08-26T04:19:25.86 3.0 positive manual P -1.88 0
IV.MMO1.EHZ. 2020-08-26T04:19:24.97 0.6 undecidable manual S 95 0.3148 50 0.09 48
IV.MOMA.HHZ. 2020-08-26T04:19:23.68 0.6 undecidable manual S 243 0.2698 50 0.13 48
IV.GAVE.EHZ. 2020-08-26T04:19:22.38 0.6 undecidable manual S 181 0.2338 50 -0.1 49
IV.ASSB.HHZ. 2020-08-26T04:19:21.49 0.3 undecidable manual S 304 0.2104 114 -0.29 70
IV.NRCA.HHZ. 2020-08-26T04:19:20.75 0.3 undecidable manual S 120 0.1835 117 -0.09 74
IV.FDMO.HHZ. 2020-08-26T04:19:20.27 0.6 undecidable manual S 51 0.1763 118 -0.34 47
IV.SNTG.HHZ. 2020-08-26T04:19:20.08 3.0 undecidable manual S -0.78 0
IV.MOMA.HHZ. 2020-08-26T04:19:19.46 1.0 negative manual P 243 0.2698 50 0.4 23
IV.MMO1.EHZ. 2020-08-26T04:19:19.70 0.1 undecidable manual P 95 0.3148 50 -0.12 95
IV.ATCC.EHZ. 2020-08-26T04:19:19.85 1.0 negative manual P 324 0.3202 50 -0.07 24
IV.GAVE.EHZ. 2020-08-26T04:19:18.44 0.1 positive manual P 181 0.2338 50 0 99
IV.NRCA.HHZ. 2020-08-26T04:19:17.51 0.1 negative manual P 120 0.1835 117 0.02 100
IV.FDMO.HHZ. 2020-08-26T04:19:17.47 0.1 undecidable manual P 51 0.1763 118 0.11 98
IV.ASSB.HHZ. 2020-08-26T04:19:17.86 0.6 undecidable manual P 304 0.2104 114 -0.18 48
IV.EL6.EHZ. 2020-08-26T04:19:17.47 3.0 negative manual P 1.42 0
IV.CESI.HHZ. 2020-08-26T04:19:17.77 0.6 undecidable manual S 3 0.0782 140 0.16 50
IV.CESI.HHZ. 2020-08-26T04:19:15.95 0.1 positive manual P 3 0.0782 140 0.32 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 0.0001625 0.16 AML other m 2020-08-26T04:19:17.90
IV.CESI.HHN. ML:1.3 0.0002755 1.9 AML other m 2020-08-26T04:19:18.00
IV.FDMO.HHN. ML:1.1 9.265E-5 0.18 AML other m 2020-08-26T04:19:20.61
IV.FDMO.HHE. ML:1.2 0.0001083 0.28 AML other m 2020-08-26T04:19:20.90
IV.NRCA.HHN. ML:1.2 0.00011725 0.16 AML other m 2020-08-26T04:19:20.93
IV.ASSB.HHE. ML:0.8 3.835E-5 0.18 AML other m 2020-08-26T04:19:21.59
IV.NRCA.HHE. ML:1.1 8.39E-5 0.08 AML other m 2020-08-26T04:19:21.59
IV.ASSB.HHN. ML:0.9 4.655E-5 0.4 AML other m 2020-08-26T04:19:21.62
IV.GAVE.EHE. ML:1 6.035E-5 1.14 AML other m 2020-08-26T04:19:23.95
IV.GAVE.EHN. ML:0.9 4.525E-5 1.44 AML other m 2020-08-26T04:19:23.08
IV.MOMA.HHE. ML:0.8 3.11E-5 0.88 AML other m 2020-08-26T04:19:24.95
IV.MOMA.HHN. ML:0.8 2.86E-5 0.68 AML other m 2020-08-26T04:19:25.16
IV.MRB1.HHN. ML:2.9 0.0001227 0.66 AML other m 2020-08-26T04:19:56.20
IV.MRB1.HHE. ML:2.8 0.00010345 0.18 AML other m 2020-08-26T04:19:57.19
IV.LRP.EHN. ML:2 4.725E-5 0.68 AML other m 2020-08-26T04:20:10.19
IV.LRP.EHE. ML:2.5 0.000164 1.46 AML other m 2020-08-26T04:20:10.22
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