INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 03-12-2018 and time 02:31:37 (Italy) in region 2 km NE Ussita (MC)

A magnitude ML 1.6 earthquake occured in region: 2 km NE Ussita (MC), on

  • 03-12-2018 01:31:37 (UTC)
  • 03-12-2018 02:31:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.96, 13.15 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
Ussita MC 2 444 444
Visso MC 6 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Bolognola MC 8 142 1974
Acquacanina MC 8 121 2095
Fiastra MC 9 559 2654
Fiordimonte MC 10 202 2856
Pieve Torina MC 12 1458 4314
Preci PG 13 724 5038
Monte Cavallo MC 13 145 5183
Pievebovigliana MC 13 866 6049
Sarnano MC 15 3264 9313
Montefortino FM 16 1178 10491
Montemonaco AP 16 604 11095
Muccia MC 16 915 12010
Amandola FM 17 3629 15639
Norcia PG 19 4957 20596
Cessapalombo MC 19 512 21108
Sellano PG 20 1079 22187
Gualdo MC 20 815 23002
Montegallo AP 20 523 23525

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
71 Km N of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
96 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 1.6 2018-12-03
01:31:37
42.96 13.15 9 2018-12-03
01:39:07
Sala Sismica INGV-Roma 63598761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-03 01:31:37 ± 0.04
Latitude 42.96 ± 0.00
Longitude 13.15 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63598761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 93
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54769
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 63598761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-03 01:39:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2018-12-03T01:31:58.66 3.0 undecidable manual S 0.11 0
IV.CAFI.HHZ. 2018-12-03T01:31:56.49 3.0 negative manual P -0.05 0
IV.COR1.EHZ. 2018-12-03T01:31:52.95 3.0 undecidable manual P 1.16 0
IV.ARVD.HHZ. 2018-12-03T01:31:49.33 3.0 undecidable manual P -0.2 0
IV.FRON.EHZ. 2018-12-03T01:31:49.54 3.0 undecidable manual P -1.44 0
IV.MURB.HHZ. 2018-12-03T01:31:49.17 0.3 undecidable manual P 304 0.5477 50 0.19 66
IV.FOSV.EHZ. 2018-12-03T01:31:47.10 1.0 undecidable manual P 320 0.4389 50 -0.02 23
IV.TERO.HHZ. 2018-12-03T01:31:47.66 1.0 positive manual P 135 0.4739 50 -0.06 23
IV.ATCC.EHZ. 2018-12-03T01:31:47.11 1.0 undecidable manual P 302 0.4344 50 0.06 23
IV.RM33.EHZ. 2018-12-03T01:31:47.83 3.0 positive manual P 0.34 0
IV.SMA1.EHZ. 2018-12-03T01:31:45.59 0.6 positive manual P 157 0.3552 50 -0.11 46
IV.LNSS.HHZ. 2018-12-03T01:31:45.82 0.6 undecidable manual P 193 0.3642 50 -0.03 47
IV.GAVE.EHZ. 2018-12-03T01:31:45.31 0.6 negative manual P 215 0.3256 50 0.13 46
IV.CESI.HHZ. 2018-12-03T01:31:45.97 0.6 undecidable manual S 285 0.1844 115 0.18 47
IV.ASSB.HHZ. 2018-12-03T01:31:45.76 0.1 positive manual P 283 0.3678 50 -0.15 92
IV.EL6.EHZ. 2018-12-03T01:31:45.89 1.0 undecidable manual P 355 0.3714 50 -0.09 23
IV.NRCA.HHZ. 2018-12-03T01:31:44.07 0.6 undecidable manual S 191 0.1277 124 0.19 48
IV.MMO1.EHZ. 2018-12-03T01:31:44.36 0.6 undecidable manual S 114 0.1439 121 -0.04 49
IV.MF5.EHZ. 2018-12-03T01:31:43.84 1.0 undecidable manual P 83 0.2293 110 0.42 22
IV.CESI.HHZ. 2018-12-03T01:31:42.52 0.1 undecidable manual P 285 0.1844 115 0.03 97
IV.GUMA.HHZ. 2018-12-03T01:31:42.52 1.0 undecidable manual P 53 0.1718 116 0.28 23
IV.FEMA.HNZ. 2018-12-03T01:31:42.12 0.6 undecidable manual S 273 0.0719 140 -0.15 49
IV.FDMO.HHZ. 2018-12-03T01:31:42.65 0.6 undecidable manual S 330 0.0899 133 -0.08 49
IV.NRCA.HHZ. 2018-12-03T01:31:41.23 0.6 positive manual P 191 0.1277 124 -0.16 48
IV.MC2.EHZ. 2018-12-03T01:31:41.98 0.6 undecidable manual S 148 0.0558 147 0.09 49
IV.MMO1.EHZ. 2018-12-03T01:31:41.63 0.3 positive manual P 114 0.1439 121 -0.06 73
IV.FDMO.HHZ. 2018-12-03T01:31:40.50 1.0 undecidable manual P 330 0.0899 133 -0.22 24
IV.FEMA.HNZ. 2018-12-03T01:31:40.46 0.1 undecidable manual P 273 0.0719 140 0 100
IV.MC2.EHZ. 2018-12-03T01:31:39.98 1.0 undecidable manual P 148 0.0558 147 -0.26 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.8 0.0008535 1.44 AML other m 2018-12-03T01:31:43.10
IV.FDMO.HHN. ML:1.6 0.000568 1.12 AML other m 2018-12-03T01:31:43.27
IV.NRCA.HHN. ML:1.8 0.000664 0.36 AML other m 2018-12-03T01:31:44.33
IV.NRCA.HHE. ML:1.8 0.000692 0.14 AML other m 2018-12-03T01:31:44.82
IV.NRCA.HNE. ML:1.8 0.0006685 0.14 AML other m 2018-12-03T01:31:44.76
IV.NRCA.HNN. ML:1.7 0.000584 0.56 AML other m 2018-12-03T01:31:45.34
IV.CESI.HHN. ML:1.8 0.000414 0.22 AML other m 2018-12-03T01:31:46.83
IV.CESI.HHE. ML:1.7 0.0003905 0.66 AML other m 2018-12-03T01:31:47.74
IV.MF5.EHE. ML:1.8 0.0003315 0.2 AML other m 2018-12-03T01:31:48.84
IV.MF5.EHN. ML:1.4 0.0001575 1.26 AML other m 2018-12-03T01:31:49.95
IV.MURB.HNN. ML:2.1 0.0002785 1.08 AML other m 2018-12-03T01:31:50.18
IV.MURB.HNE. ML:2.2 0.0002955 0.48 AML other m 2018-12-03T01:31:50.81
IV.GAVE.EHN. ML:1.9 0.000295 0.52 AML other m 2018-12-03T01:31:51.49
IV.GAVE.EHE. ML:1.9 0.000311 0.82 AML other m 2018-12-03T01:31:51.56
IV.ASSB.HHN. ML:1.6 0.000138 0.2 AML other m 2018-12-03T01:31:52.62
IV.LNSS.HHE. ML:1.4 8.99E-5 0.16 AML other m 2018-12-03T01:31:53.65
IV.EL6.EHN. ML:1.6 0.0001515 1.1 AML other m 2018-12-03T01:31:53.93
IV.ASSB.HHE. ML:1.6 0.000127 0.5 AML other m 2018-12-03T01:31:54.10
IV.LNSS.HHN. ML:1.5 0.0001053 0.82 AML other m 2018-12-03T01:31:54.69
IV.EL6.EHE. ML:1.7 0.0001745 1.76 AML other m 2018-12-03T01:31:54.07
IV.FOSV.EHE. ML:1.2 4.22E-5 0.58 AML other m 2018-12-03T01:31:55.48
IV.TERO.HHE. ML:1.5 6.805E-5 0.14 AML other m 2018-12-03T01:31:55.65
IV.TERO.HHN. ML:1.4 5.375E-5 0.38 AML other m 2018-12-03T01:31:55.51
IV.ATCC.EHN. ML:1.5 8.17E-5 1.42 AML other m 2018-12-03T01:31:55.86
IV.SMA1.EHN. ML:1.3 7.315E-5 0.4 AML other m 2018-12-03T01:31:56.03
IV.ATCC.EHE. ML:1.6 0.00011435 1.04 AML other m 2018-12-03T01:31:56.54
IV.RM33.EHE. ML:1.2 4.625E-5 1.46 AML other m 2018-12-03T01:31:56.79
IV.RM33.EHN. ML:1.2 4.08E-5 0.34 AML other m 2018-12-03T01:31:57.00
IV.SMA1.EHE. ML:1.3 7.685E-5 0.98 AML other m 2018-12-03T01:31:57.05
IV.FOSV.EHN. ML:1.3 5.65E-5 1.76 AML other m 2018-12-03T01:31:57.00
IV.ARVD.HHN. ML:1.4 4.6E-5 0.12 AML other m 2018-12-03T01:31:59.28
IV.MURB.HHN. ML:1.8 0.0001164 0.96 AML other m 2018-12-03T01:31:59.34
IV.ARVD.HHE. ML:1.4 5.715E-5 0.7 AML other m 2018-12-03T01:32:00.04
IV.MURB.HHE. ML:1.7 9.565E-5 1.8 AML other m 2018-12-03T01:32:00.09
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