Earthquake with magnitude of ML 0.7 on date 28-09-2020 and time 19:28:58 (UTC) in region 2 km SE Nocera Umbra (PG)

A magnitude ML 0.7 earthquake occured in region: 2 km SE Nocera Umbra (PG), on

  • 28-09-2020 19:28:58 (UTC)
  • 28-09-2020 21:28:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.09, 12.8 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
Nocera Umbra PG 2 5839 5839
Valtopina PG 5 1398 7237
Serravalle di Chienti MC 13 1070 8307
Sefro MC 14 422 8729
Assisi PG 15 28299 37028
Fiuminata MC 15 1402 38430
Spello PG 15 8645 47075
Gualdo Tadino PG 16 15208 62283
Foligno PG 17 57155 119438
Valfabbrica PG 18 3389 122827
Pioraco MC 18 1134 123961
Monte Cavallo MC 20 145 124106

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
60 Km N of Terni (111501 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
85 Km E of Arezzo (99543 inhabitants)
85 Km S of Fano (60888 inhabitants)
88 Km NW of Teramo (54892 inhabitants)
91 Km S of Pesaro (94582 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
96 Km NW of L'Aquila (69753 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 0.7 2020-09-28
19:28:58
43.09 12.8 11 2020-09-28
21:35:35
Sala Sismica INGV-Roma 83343801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-28 19:28:58 ± 0.04
Latitude 43.09 ± 0.00
Longitude 12.80 ± 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 83343801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 97
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2626
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 83343801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-28 21:35:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2020-09-28T19:30:33.58 3.0 negative manual Pg 21.4 0
IV.MILN.HHZ. 2020-09-28T19:30:30.27 3.0 undecidable manual Sn -4.67 0
IV.OPPE.HHZ. 2020-09-28T19:30:26.09 3.0 undecidable manual Sg 15.4 0
IV.NDIM.HHZ. 2020-09-28T19:30:19.38 3.0 undecidable manual Sg 14.26 0
IV.MILZ.HHZ. 2020-09-28T19:30:07.66 3.0 undecidable manual Pg 15.53 0
IV.CMPR.HHZ. 2020-09-28T19:29:59.82 3.0 undecidable manual Sn 0.04 0
GU.CANO.HHZ. 2020-09-28T19:29:54.51 3.0 undecidable manual Pg 8.6 0
IV.ERC.EHZ. 2020-09-28T19:29:49.76 3.0 undecidable manual Pn -3 0
IV.MBAL.EHZ. 2020-09-28T19:29:44.71 3.0 negative manual Pg 5.35 0
IV.ZONE.HHZ. 2020-09-28T19:29:39.56 3.0 positive manual Pn -4.51 0
IV.ARCI.HHZ. 2020-09-28T19:29:31.78 3.0 undecidable manual Sg 1.17 0
IV.SACS.HHZ. 2020-09-28T19:29:24.74 3.0 undecidable manual Sg 0.77 0
IV.LRP.EHZ. 2020-09-28T19:29:20.79 3.0 undecidable manual Sn -0.04 0
IV.PAOL.HHZ. 2020-09-28T19:29:20.37 3.0 negative manual Pg 4.94 0
IV.FIR.HHZ. 2020-09-28T19:29:19.75 3.0 undecidable manual Pg 2.28 0
IV.MMO1.EHZ. 2020-09-28T19:29:14.51 3.0 undecidable manual Sn 3.32 0
IV.MURB.HHZ. 2020-09-28T19:29:09.24 0.3 undecidable manual S 310 0.2626 50 0.16 71
IV.FDMO.HHZ. 2020-09-28T19:29:07.67 0.6 undecidable manual S 105 0.2176 50 -0.07 49
IV.SNTG.HHZ. 2020-09-28T19:29:06.80 0.3 undecidable manual S 32 0.1916 116 -0.14 73
IV.ATCC.EHZ. 2020-09-28T19:29:05.58 0.6 undecidable manual S 308 0.1484 122 0.11 49
IV.MURB.HHZ. 2020-09-28T19:29:04.53 1.0 positive manual P 310 0.2626 50 -0.16 24
IV.ASSB.HHZ. 2020-09-28T19:29:04.33 0.6 undecidable manual S 244 0.1142 129 -0.09 50
IV.MML1.HNZ. 2020-09-28T19:29:04.94 0.3 undecidable manual S 81 0.1277 127 0.14 74
IV.CESI.HHZ. 2020-09-28T19:29:04.56 0.6 undecidable manual S 139 0.1169 129 0.08 50
IV.SACS.HHZ. 2020-09-28T19:29:03.88 3.0 undecidable manual P -3.2 0
IV.SNTG.HHZ. 2020-09-28T19:29:03.34 0.6 positive manual P 32 0.1916 116 -0.11 49
IV.FDMO.HHZ. 2020-09-28T19:29:03.78 1.0 undecidable manual P 105 0.2176 50 -0.14 24
IV.MML1.HNZ. 2020-09-28T19:29:02.30 0.1 undecidable manual P 81 0.1277 127 0.07 100
IV.CESI.HHZ. 2020-09-28T19:29:02.03 0.6 undecidable manual P 139 0.1169 129 -0.01 51
IV.ATCC.EHZ. 2020-09-28T19:29:02.58 0.1 negative manual P 308 0.1484 122 -0.03 100
IV.ASSB.HHZ. 2020-09-28T19:29:01.91 0.6 positive manual P 244 0.1142 129 -0.09 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.7 5.114229E-5 0.1024 AML other m 2020-09-28T19:29:04.35
IV.ASSB.HHN. ML:1.1 0.00012777075 0.0768 AML other m 2020-09-28T19:29:04.44
IV.CESI.HHE. ML:0.4 2.49046455E-5 1.7536 AML other m 2020-09-28T19:29:04.77
IV.CESI.HHN. ML:0.4 2.268938E-5 0.2944 AML other m 2020-09-28T19:29:04.99
IV.ATCC.EHE. ML:1 9.210838E-5 0.1152 AML other m 2020-09-28T19:29:05.76
IV.ATCC.EHN. ML:0.8 5.7534816E-5 0.896 AML other m 2020-09-28T19:29:06.28
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