Earthquake with magnitude of ML 1.2 on date 02-08-2020 and time 22:04:12 (Italy) in region 2 km NE Visso (MC)

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

  • 02-08-2020 20:04:12 (UTC)
  • 02-08-2020 22:04:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.1 at 13 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
Visso MC 3 1107 1107
Ussita MC 4 444 1551
Castelsantangelo sul Nera MC 8 281 1832
Monte Cavallo MC 9 145 1977
Fiordimonte MC 9 202 2179
Preci PG 10 724 2903
Fiastra MC 10 559 3462
Acquacanina MC 11 121 3583
Pieve Torina MC 11 1458 5041
Bolognola MC 12 142 5183
Pievebovigliana MC 12 866 6049
Muccia MC 15 915 6964
Sellano PG 16 1079 8043
Norcia PG 18 4957 13000
Serravalle di Chienti MC 18 1070 14070
Sarnano MC 19 3264 17334
Montemonaco AP 20 604 17938
Montefortino FM 20 1178 19116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
57 Km NE of Terni (111501 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
60 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
99 Km NW of Montesilvano (53738 inhabitants)
99 Km S of Fano (60888 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 1.2 2020-08-02
20:04:12
42.95 13.1 13 2020-08-02
20:08:16
Sala Sismica INGV-Roma 81590081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-02 20:04:12 ± 0.07
Latitude 42.95 ± 0.00
Longitude 13.10 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81590081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 287
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30037
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 81590081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-02 20:08:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2020-08-02T20:04:21.34 3.0 positive manual P -0.03 0
IV.MMO1.EHZ. 2020-08-02T20:04:20.14 0.3 undecidable manual S 108 0.1754 106 -0.18 72
IV.CSP1.EHZ. 2020-08-02T20:04:19.70 0.3 undecidable manual S 29 0.1592 109 -0.14 73
IV.GAVE.EHZ. 2020-08-02T20:04:19.25 1.0 undecidable manual P 210 0.3004 96 0.1 24
IV.CESI.HHZ. 2020-08-02T20:04:19.69 0.3 undecidable manual S 290 0.1511 111 0.07 74
IV.MF5.EHZ. 2020-08-02T20:04:19.03 1.0 positive manual P 82 0.2662 97 0.46 22
IV.MC2.EHN. 2020-08-02T20:04:18.01 0.1 undecidable manual S 122 0.0782 137 0.17 96
IV.NRCA.HHZ. 2020-08-02T20:04:18.56 0.1 undecidable manual S 174 0.1205 121 -0.23 94
IV.FDMO.HHZ. 2020-08-02T20:04:17.77 0.3 undecidable manual S 355 0.0836 135 -0.17 73
IV.MMO1.EHZ. 2020-08-02T20:04:17.00 0.1 positive manual P 108 0.1754 106 -0.04 98
IT.MTCL.HGZ. 2020-08-02T20:04:17.75 0.3 undecidable manual S 299 0.0827 135 -0.18 72
IV.FEMA.HNZ. 2020-08-02T20:04:17.19 0.3 undecidable manual S 284 0.0369 159 0.01 75
IV.CSP1.EHZ. 2020-08-02T20:04:16.85 0.1 undecidable manual P 29 0.1592 109 0.08 97
IV.NRCA.HHZ. 2020-08-02T20:04:16.14 0.1 positive manual P 174 0.1205 121 -0.03 98
IV.CESI.HHZ. 2020-08-02T20:04:16.75 0.6 undecidable manual P 290 0.1511 111 0.11 49
IV.FEMA.HNZ. 2020-08-02T20:04:15.36 0.3 undecidable manual P 284 0.0369 159 0.13 74
IV.FDMO.HHZ. 2020-08-02T20:04:15.69 0.1 positive manual P 355 0.0836 135 0.01 100
IV.MC2.EHN. 2020-08-02T20:04:15.75 0.1 undecidable manual P 122 0.0782 137 0.14 97
IT.MTCL.HGZ. 2020-08-02T20:04:15.68 0.1 undecidable manual P 299 0.0827 135 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.7 5.525E-5 1.32 AML other m 2020-08-02T20:04:18.26
IV.NRCA.HHN. ML:1.5 0.000301 0.16 AML other m 2020-08-02T20:04:18.68
IV.FDMO.HHE. ML:0.8 6.725E-5 0.1 AML other m 2020-08-02T20:04:19.03
IV.NRCA.HHE. ML:1.4 0.000206 0.14 AML other m 2020-08-02T20:04:19.21
IV.CESI.HHN. ML:1.4 0.000189 1.8 AML other m 2020-08-02T20:04:20.06
IV.CESI.HHE. ML:1.2 0.00011775 0.4 AML other m 2020-08-02T20:04:20.08
IV.GAVE.EHE. ML:1.4 0.0001085 0.18 AML other m 2020-08-02T20:04:24.41
IV.GAVE.EHN. ML:1.2 6.365E-5 0.88 AML other m 2020-08-02T20:04:24.53
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