Earthquake with magnitude of ML 0.8 on date 28-06-2020 and time 06:54:52 (Italy) in region 4 km SW Nocera Umbra (PG)

A magnitude ML 0.8 earthquake occured in region: 4 km SW Nocera Umbra (PG), on

  • 28-06-2020 04:54:52 (UTC)
  • 28-06-2020 06:54:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1, 12.75 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 4 5839 5839
Valtopina PG 4 1398 7237
Assisi PG 11 28299 35536
Spello PG 13 8645 44181
Valfabbrica PG 14 3389 47570
Gualdo Tadino PG 15 15208 62778
Foligno PG 16 57155 119933
Serravalle di Chienti MC 16 1070 121003
Bastia Umbra PG 17 21874 142877
Sefro MC 17 422 143299
Cannara PG 18 4305 147604
Fiuminata MC 18 1402 149006

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km N of Foligno (57155 inhabitants)
30 Km E of Perugia (166134 inhabitants)
60 Km N of Terni (111501 inhabitants)
82 Km SE of Arezzo (99543 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
86 Km S of Fano (60888 inhabitants)
92 Km NW of Teramo (54892 inhabitants)
92 Km S of Pesaro (94582 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
98 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 0.8 2020-06-28
04:54:52
43.1 12.75 10 2020-06-28
05:03:18
Sala Sismica INGV-Roma 80575871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-28 04:54:52 ± 0.08
Latitude 43.10 ± 0.00
Longitude 12.75 ± 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 80575871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 357
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.23652
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 80575871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-28 05:03:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-06-28T04:55:02.06 0.3 undecidable manual S 315 0.2365 110 0.26 67
IV.SNTG.HHZ. 2020-06-28T04:55:00.76 0.3 undecidable manual S 41 0.2095 113 -0.1 71
IV.ATCC.EHZ. 2020-06-28T04:54:58.01 0.3 undecidable manual S 317 0.1223 126 0.13 73
IV.CESI.HHZ. 2020-06-28T04:54:58.65 0.3 undecidable manual S 129 0.143 122 0.1 73
IV.SNTG.HHZ. 2020-06-28T04:54:57.08 0.1 undecidable manual P 41 0.2095 113 -0.07 97
IV.MURB.HHZ. 2020-06-28T04:54:57.47 0.1 undecidable manual P 315 0.2365 110 -0.22 95
IV.ASSB.HHZ. 2020-06-28T04:54:56.74 0.1 undecidable manual S 233 0.0872 135 -0.12 97
IV.ATCC.EHZ. 2020-06-28T04:54:55.50 0.1 undecidable manual P 317 0.1223 126 0.07 98
IV.CESI.HHZ. 2020-06-28T04:54:55.92 0.1 undecidable manual P 129 0.143 122 0.1 97
IV.ASSB.HHZ. 2020-06-28T04:54:54.83 0.1 undecidable manual P 233 0.0872 135 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.3 0.000258 0.16 AML other m 2020-06-28T04:54:56.77
IV.ASSB.HHE. ML:1 0.0001195 0.36 AML other m 2020-06-28T04:54:56.98
IV.ATCC.EHE. ML:0.9 8.695E-5 0.12 AML other m 2020-06-28T04:54:58.22
IV.ATCC.EHN. ML:0.9 7.29E-5 0.3 AML other m 2020-06-28T04:54:58.39
IV.CESI.HHN. ML:0.4 2.605E-5 1.82 AML other m 2020-06-28T04:54:58.04
IV.CESI.HHE. ML:0.5 2.91E-5 1.6 AML other m 2020-06-28T04:54:59.87
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