Earthquake with magnitude of ML 0.6 on date 01-08-2019 and time 01:30:01 (Italy) in region 2 km NW Ussita (MC)

A magnitude ML 0.6 earthquake occured in region: 2 km NW Ussita (MC), on

  • 31-07-2019 23:30:01 (UTC)
  • 01-08-2019 01:30:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.96, 13.12 at 11 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 4 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Fiordimonte MC 9 202 2034
Acquacanina MC 10 121 2155
Fiastra MC 10 559 2714
Bolognola MC 10 142 2856
Monte Cavallo MC 11 145 3001
Preci PG 11 724 3725
Pieve Torina MC 11 1458 5183
Pievebovigliana MC 12 866 6049
Muccia MC 15 915 6964
Sellano PG 17 1079 8043
Sarnano MC 17 3264 11307
Montemonaco AP 18 604 11911
Montefortino FM 18 1178 13089
Norcia PG 18 4957 18046
Serravalle di Chienti MC 19 1070 19116
Amandola FM 20 3629 22745

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
97 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
Rev 100 ML 0.6 2019-07-31
23:30:01
42.96 13.12 11 2019-07-31
23:37:04
Sala Sismica INGV-Roma 71073851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-31 23:30:01 ± 0.1
Latitude 42.96 ± 0.01
Longitude 13.12 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71073851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 640
Semi-minor axis of confidence ellipse (meter) 263
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31117
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 71073851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-31 23:37:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
AC.KBN.HHZ. 2019-07-31T23:31:29.27 3.0 negative manual Pn 8 0
IV.ECTS.EHZ. 2019-07-31T23:31:10.17 3.0 undecidable manual Pg 13.44 0
CR.STON.BHZ. 2019-07-31T23:30:59.66 3.0 undecidable manual Pg 13.07 0
IV.GATE.HHZ. 2019-07-31T23:30:46.79 3.0 undecidable manual Sn 0.02 0
IV.GAVE.EHE. 2019-07-31T23:30:12.95 0.3 undecidable manual S 212 0.3112 50 0 73
IV.MF5.EHZ. 2019-07-31T23:30:11.94 0.6 undecidable manual S 83 0.2509 50 0.76 40
IV.MML1.EHE. 2019-07-31T23:30:09.19 0.6 undecidable manual S 326 0.1907 116 -0.19 48
IV.MMO1.EHZ. 2019-07-31T23:30:08.10 0.1 undecidable manual S 110 0.1619 120 -0.3 94
IV.CESI.HHE. 2019-07-31T23:30:08.58 0.6 undecidable manual S 287 0.1646 120 0.1 49
IV.MF5.EHZ. 2019-07-31T23:30:07.02 0.3 undecidable manual P 83 0.2509 50 0.08 73
IV.GAVE.EHE. 2019-07-31T23:30:07.73 0.3 undecidable manual P 212 0.3112 50 -0.25 70
IV.MC2.EHZ. 2019-07-31T23:30:06.09 0.1 undecidable manual S 131 0.0674 145 0.44 93
IV.NRCA.HHE. 2019-07-31T23:30:06.86 0.3 undecidable manual S 182 0.1223 128 -0.27 72
IV.FDMO.HHZ. 2019-07-31T23:30:06.22 0.6 undecidable manual S 344 0.0836 139 0.18 49
IT.MTCL.HGE. 2019-07-31T23:30:06.46 0.3 undecidable manual S 293 0.0953 135 0.11 75
IV.MML1.EHE. 2019-07-31T23:30:05.84 0.3 undecidable manual P 326 0.1907 116 -0.06 74
IV.MMO1.EHZ. 2019-07-31T23:30:05.18 0.3 undecidable manual P 110 0.1619 120 -0.16 73
IV.CESI.HHE. 2019-07-31T23:30:05.47 0.1 undecidable manual P 287 0.1646 120 0.08 99
IV.CSP1.EHE. 2019-07-31T23:30:04.10 0.3 undecidable manual P 25 0.1493 122 -1 55
IT.MTCL.HGE. 2019-07-31T23:30:04.30 0.3 undecidable manual P 293 0.0953 135 0.14 74
IV.MC2.EHZ. 2019-07-31T23:30:04.01 0.3 undecidable manual P 131 0.0674 145 0.25 73
IV.NRCA.HHE. 2019-07-31T23:30:04.56 0.3 undecidable manual P 182 0.1223 128 -0.05 75
IV.FDMO.HHZ. 2019-07-31T23:30:04.07 0.1 undecidable manual P 344 0.0836 139 0.09 100
IV.SAMA.HHZ. 2019-07-31T23:29:54.03 3.0 positive manual P 0.01 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 9.76E-5 0.18 AML other m 2019-07-31T23:30:06.39
IV.FDMO.HHN. ML:0.6 5.69E-5 0.22 AML other m 2019-07-31T23:30:06.44
IV.MF5.EHE. ML:0.5 1.483294E-5 0.6784 AML other m 2019-07-31T23:30:12.39
IV.MF5.EHN. ML:0.5 1.5048318E-5 2.9184 AML other m 2019-07-31T23:30:13.01
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