Earthquake with magnitude of ML 0.7 on date 07-07-2020 and time 01:22:28 (Italy) in region 3 km W Assisi (PG)

A magnitude ML 0.7 earthquake occured in region: 3 km W Assisi (PG), on

  • 06-07-2020 23:22:28 (UTC)
  • 07-07-2020 01:22:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.07, 12.58 at 9 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
Assisi PG 3 28299 28299
Bastia Umbra PG 3 21874 50173
Cannara PG 8 4305 54478
Bettona PG 10 4367 58845
Valfabbrica PG 10 3389 62234
Spello PG 11 8645 70879
Torgiano PG 13 6725 77604
Valtopina PG 14 1398 79002
Bevagna PG 15 5081 84083
Foligno PG 16 57155 141238
Deruta PG 16 9669 150907
Perugia PG 16 166134 317041
Nocera Umbra PG 18 5839 322880
Gualdo Cattaneo PG 18 6155 329035

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Foligno (57155 inhabitants)
16 Km E of Perugia (166134 inhabitants)
57 Km N of Terni (111501 inhabitants)
72 Km SE of Arezzo (99543 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
93 Km SW of Fano (60888 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km S of Pesaro (94582 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 2020-07-06
23:22:28
43.07 12.58 9 2020-07-06
23:33:21
Sala Sismica INGV-Roma 80842651
Reviewed
Rev100
ML 1.1 2020-07-06
23:22:28
43.07 12.58 9 2020-07-06
23:31:28
Sala Sismica INGV-Roma 80842561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-06 23:22:28 ± 0.15
Latitude 43.07 ± 0.00
Longitude 12.58 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80842651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 905
Semi-minor axis of confidence ellipse (meter) 460
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.19875
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.5
Num. used stations 8
Type of magnitude ML
Reference to an origin 80842651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-06 23:33:21

ML:1.1

Field Value
Value 1.1
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 80842561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-06 23:31:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RMP.HHZ. 2020-07-06T23:22:58.19 3.0 undecidable manual Sg 0.1 0
IV.RMP.HHZ. 2020-07-06T23:22:42.21 3.0 positive manual Pn -0.59 0
IV.CRTC.HHZ. 2020-07-06T23:22:38.32 3.0 negative manual P 0.01 0
IV.MURB.HHZ. 2020-07-06T23:22:36.49 0.6 undecidable manual S 347 0.1988 112 0.01 66
IV.ATCC.EHZ. 2020-07-06T23:22:33.92 0.6 undecidable manual S 19 0.1232 123 0.04 67
IV.MURB.HHZ. 2020-07-06T23:22:32.95 1.0 undecidable manual P 347 0.1988 112 -0.03 33
IV.ASSB.HHZ. 2020-07-06T23:22:32.02 0.6 undecidable manual S 116 0.0603 143 -0.05 67
IV.ATCC.EHZ. 2020-07-06T23:22:31.44 0.3 undecidable manual P 19 0.1232 123 -0.05 100
IV.ASSB.HHZ. 2020-07-06T23:22:30.53 0.6 undecidable manual P 116 0.0603 143 0.09 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:0.4 4.7325205E-5 0.0768 AML other m 2020-07-06T23:22:32.25
IV.ASSB.HHE. ML:0.1 2.244266E-5 0.0768 AML other m 2020-07-06T23:22:32.30
IV.ATCC.EHN. ML:0.1 1.55650035E-5 0.1792 AML other m 2020-07-06T23:22:34.37
IV.ATCC.EHE. ML:0.3 1.9876918E-5 0.192 AML other m 2020-07-06T23:22:34.75
IV.MURB.HHN. ML:1 7.684396E-5 0.2176 AML other m 2020-07-06T23:22:36.94
IV.MURB.HHE. ML:1.1 8.251093E-5 0.2432 AML other m 2020-07-06T23:22:37.31
IV.RMP.HHN. ML:2.5 0.000190837555 0.0512 AML other m 2020-07-06T23:22:46.30
IV.MURB.HNN. ML:1.2 0.00010979965 0.5888 AML other m 2020-07-06T23:22:50.04
IV.MURB.HNE. ML:1.2 0.00012110795 1.0752 AML other m 2020-07-06T23:22:50.28
IV.CRTC.HNE. ML:3.8 0.0087581035 0.8448 AML other m 2020-07-06T23:22:50.41
IV.CRTC.HHN. ML:1.4 2.91927E-5 0.7168 AML other m 2020-07-06T23:22:54.98
IV.CRTC.HHE. ML:1.2 1.822354E-5 0.7296 AML other m 2020-07-06T23:22:57.09
IV.CRTC.HNN. ML:3.6 0.006282237 1.0496 AML other m 2020-07-06T23:22:58.17
IV.RMP.HHE. ML:2.5 0.00016773566 0.0768 AML other m 2020-07-06T23:23:03.87
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