Earthquake with magnitude of ML 1.2 on date 05-04-2020 and time 21:04:32 (UTC) in region 2 km SW Ussita (MC)

A magnitude ML 1.2 earthquake occured in region: 2 km SW Ussita (MC), on

  • 05-04-2020 21:04:32 (UTC)
  • 05-04-2020 23:04:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.93, 13.13 at 7 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
Ussita MC 2 444 444
Visso MC 3 1107 1551
Castelsantangelo sul Nera MC 4 281 1832
Preci PG 9 724 2556
Bolognola MC 11 142 2698
Acquacanina MC 12 121 2819
Fiastra MC 12 559 3378
Monte Cavallo MC 12 145 3523
Fiordimonte MC 12 202 3725
Pieve Torina MC 14 1458 5183
Pievebovigliana MC 15 866 6049
Norcia PG 15 4957 11006
Montemonaco AP 17 604 11610
Sellano PG 17 1079 12689
Montefortino FM 18 1178 13867
Muccia MC 18 915 14782
Sarnano MC 19 3264 18046
Montegallo AP 19 523 18569
Amandola FM 20 3629 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 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 1.2 2020-04-05
21:04:32
42.93 13.13 7 2020-04-05
21:10:16
Sala Sismica INGV-Roma 77932031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-05 21:04:32 ± 0.16
Latitude 42.93 ± 0.01
Longitude 13.13 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77932031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 676
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.4002
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 77932031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-05 21:10:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-04-05T21:04:47.12 0.3 undecidable manual S 357 0.4002 50 -0.71 59
IV.MF5.EHZ. 2020-04-05T21:04:42.94 0.6 undecidable manual S 76 0.2509 104 0.46 44
IV.EL6.EHZ. 2020-04-05T21:04:42.36 0.1 undecidable manual P 357 0.4002 50 0.99 70
IV.CESI.HHZ. 2020-04-05T21:04:39.84 0.3 undecidable manual S 295 0.179 109 0.02 74
IV.CSP1.EHZ. 2020-04-05T21:04:39.61 0.3 undecidable manual S 19 0.1718 109 0.04 74
IV.MMO1.EHZ. 2020-04-05T21:04:38.66 0.3 undecidable manual S 102 0.1493 112 -0.12 73
IV.MF5.EHZ. 2020-04-05T21:04:38.10 0.1 undecidable manual P 76 0.2509 104 -0.18 94
IV.FDMO.HHZ. 2020-04-05T21:04:37.49 0.3 undecidable manual S 345 0.1106 119 0.09 74
IV.CESI.HHZ. 2020-04-05T21:04:36.59 0.1 undecidable manual P 295 0.179 109 -0.16 96
IV.NRCA.HHZ. 2020-04-05T21:04:36.97 0.3 undecidable manual S 185 0.0962 122 0.03 75
IV.CSP1.EHZ. 2020-04-05T21:04:36.49 0.1 undecidable manual P 19 0.1718 109 -0.11 97
IV.MMO1.EHZ. 2020-04-05T21:04:36.04 0.1 positive manual P 102 0.1493 112 -0.1 97
IV.FDMO.HHZ. 2020-04-05T21:04:35.37 0.1 undecidable manual P 345 0.1106 119 0.01 100
IV.NRCA.HHZ. 2020-04-05T21:04:35.14 0.6 undecidable manual P 185 0.0962 122 0.05 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.3 0.0002627101 0.0896 AML other m 2020-04-05T21:04:37.10
IV.NRCA.HHN. ML:1.3 0.0003019373 0.0768 AML other m 2020-04-05T21:04:37.14
IV.NRCA.HHE. ML:1.4 0.00033684925 0.0768 AML other m 2020-04-05T21:04:37.74
IV.NRCA.HNE. ML:1.3 0.0003063379 0.0896 AML other m 2020-04-05T21:04:37.74
IV.FDMO.HHE. ML:0.6 5.621062E-5 0.4608 AML other m 2020-04-05T21:04:38.05
IV.FDMO.HHN. ML:0.8 7.5178425E-5 0.1792 AML other m 2020-04-05T21:04:37.71
IV.CSP1.EHN. ML:0.8 5.5046515E-5 3.136 AML other m 2020-04-05T21:04:39.71
IV.CSP1.EHE. ML:1.1 0.000105921985 3.9168 AML other m 2020-04-05T21:04:37.19
IV.CESI.HNE. ML:1.3 0.00016149105 2.112 AML other m 2020-04-05T21:04:39.56
IV.CESI.HHE. ML:0.9 5.7715765E-5 0.192 AML other m 2020-04-05T21:04:40.00
IV.CESI.HHN. ML:1.1 9.905883E-5 0.2048 AML other m 2020-04-05T21:04:40.14
IV.CESI.HNN. ML:1.4 0.000204918 1.3184 AML other m 2020-04-05T21:04:36.21
IV.MF5.EHN. ML:1.4 0.0001509885 2.1376 AML other m 2020-04-05T21:04:42.72
IV.MF5.EHE. ML:1.3 0.0001073062 2.6752 AML other m 2020-04-05T21:04:51.78
IV.EL6.EHN. ML:1.4 7.7402565E-5 1.5232 AML other m 2020-04-05T21:04:54.99
IV.EL6.EHE. ML:1.4 6.7770885E-5 2.0352 AML other m 2020-04-05T21:04:51.88
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