Earthquake with magnitude of ML 0.9 on date 02-04-2020 and time 14:59:20 (Italy) in region 1 km N Ussita (MC)

A magnitude ML 0.9 earthquake occured in region: 1 km N Ussita (MC), on

  • 02-04-2020 12:59:20 (UTC)
  • 02-04-2020 14:59:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.14 at 1 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 1 444 444
Visso MC 5 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Bolognola MC 9 142 1974
Acquacanina MC 9 121 2095
Fiastra MC 9 559 2654
Fiordimonte MC 10 202 2856
Preci PG 12 724 3580
Monte Cavallo MC 12 145 3725
Pieve Torina MC 13 1458 5183
Pievebovigliana MC 13 866 6049
Sarnano MC 16 3264 9313
Muccia MC 16 915 10228
Montemonaco AP 16 604 10832
Montefortino FM 17 1178 12010
Amandola FM 18 3629 15639
Norcia PG 18 4957 20596
Sellano PG 19 1079 21675
Cessapalombo MC 20 512 22187
Montegallo AP 20 523 22710

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
96 Km NW of Montesilvano (53738 inhabitants)
100 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 0.9 2020-04-02
12:59:20
42.95 13.14 1 2020-04-02
13:06:02
Sala Sismica INGV-Roma 77790971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-02 12:59:20 ± 0.14
Latitude 42.95 ± 0.00
Longitude 13.14 ± 0.00
Depth (km) 1 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77790971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 91
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.23562
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 77790971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-02 13:06:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SIRI.HHZ. 2020-04-02T13:00:47.40 3.0 undecidable manual Sn -6.58 0
OX.SABO.HNZ. 2020-04-02T13:00:46.08 3.0 undecidable manual Sg 1.35 0
AC.VLO.HHZ. 2020-04-02T13:00:44.23 3.0 undecidable manual Pn 5.9 0
XK.SELL.HHZ. 2020-04-02T13:00:34.29 3.0 negative manual Pn 3.88 0
IV.CIGN.HHZ. 2020-04-02T13:00:18.01 3.0 undecidable manual Sg 3.31 0
IV.MGR.HHZ. 2020-04-02T13:00:18.67 3.0 undecidable manual Pg 7.72 0
IV.PTRJ.HHZ. 2020-04-02T13:00:17.20 3.0 undecidable manual Sg 0.95 0
CR.STON.BHZ. 2020-04-02T13:00:15.04 3.0 undecidable manual Pn 4.59 0
IV.RIBO.EHZ.01 2020-04-02T13:00:09.99 3.0 undecidable manual Sn 0.15 0
GU.GSCL.HHZ. 2020-04-02T13:00:01.93 3.0 undecidable manual Pg 4.05 0
GU.POPM.HHZ. 2020-04-02T12:59:53.40 3.0 undecidable manual Pn -0.82 0
IV.SACR.HHZ. 2020-04-02T12:59:53.24 3.0 undecidable manual Pg 1.61 0
IV.LAV9.HHZ. 2020-04-02T12:59:43.35 3.0 positive manual Pg -0.53 0
IV.LPEL.HHZ. 2020-04-02T12:59:39.78 3.0 negative manual P -1.48 0
IV.MF5.EHZ. 2020-04-02T12:59:29.63 0.3 undecidable manual S 81 0.2356 92 0.46 68
IV.TERO.HHZ. 2020-04-02T12:59:28.64 3.0 undecidable manual S 0
IV.CESI.HHZ. 2020-04-02T12:59:27.20 0.1 undecidable manual S 287 0.1799 93 0.19 97
IV.TERO.HHZ. 2020-04-02T12:59:27.07 3.0 undecidable manual P 0
IV.MF5.EHZ. 2020-04-02T12:59:25.31 0.1 undecidable manual P 81 0.2356 92 -0.02 100
IV.CSP1.EHZ. 2020-04-02T12:59:25.56 0.1 undecidable manual S 19 0.1466 94 -0.16 99
IV.NRCA.HHZ. 2020-04-02T12:59:24.95 0.3 undecidable manual S 189 0.1214 94 0.2 74
IV.CSP1.EHZ. 2020-04-02T12:59:23.20 0.1 undecidable manual P 19 0.1466 94 -0.13 99
IV.FDMO.HHZ. 2020-04-02T12:59:23.89 0.3 undecidable manual S 335 0.0917 96 0.27 73
IV.CESI.HHZ. 2020-04-02T12:59:23.90 0.1 undecidable manual P 287 0.1799 93 -0.18 98
IV.NRCA.HHZ. 2020-04-02T12:59:22.64 0.1 undecidable manual P 189 0.1214 94 -0.13 100
IV.MC2.EHZ. 2020-04-02T12:59:22.07 0.3 undecidable manual S 140 0.0549 100 -0.15 76
IV.MC2.EHZ. 2020-04-02T12:59:21.26 0.6 undecidable manual P 140 0.0549 100 -0.05 51
IV.FDMO.HHZ. 2020-04-02T12:59:21.91 0.6 undecidable manual P 335 0.0917 96 -0.21 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.8 0.000125 0.22 AML other m 2020-04-02T12:59:24.37
IV.FDMO.HHE. ML:0.7 9.165E-5 0.18 AML other m 2020-04-02T12:59:24.70
IV.NRCA.HHE. ML:1.1 0.00018 0.72 AML other m 2020-04-02T12:59:25.97
IV.NRCA.HHN. ML:1 0.0001425 0.12 AML other m 2020-04-02T12:59:26.40
IV.CESI.HHN. ML:1.1 0.0001055 1.64 AML other m 2020-04-02T12:59:28.09
IV.CESI.HHE. ML:0.8 5.66E-5 1.18 AML other m 2020-04-02T12:59:28.88
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