INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.3 on date 12-09-2018 and time 12:17:38 (Italy) in region 3 km NE Ussita (MC)

A magnitude ML 1.3 earthquake occured in region: 3 km NE Ussita (MC), on

  • 12-09-2018 10:17:38 (UTC)
  • 12-09-2018 12:17:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.97, 13.16 at 10 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 3 444 444
Bolognola MC 6 142 586
Acquacanina MC 7 121 707
Visso MC 7 1107 1814
Fiastra MC 7 559 2373
Castelsantangelo sul Nera MC 8 281 2654
Fiordimonte MC 9 202 2856
Pievebovigliana MC 12 866 3722
Pieve Torina MC 12 1458 5180
Monte Cavallo MC 13 145 5325
Sarnano MC 14 3264 8589
Preci PG 14 724 9313
Montefortino FM 15 1178 10491
Muccia MC 16 915 11406
Montemonaco AP 16 604 12010
Amandola FM 16 3629 15639
Cessapalombo MC 18 512 16151
Gualdo MC 18 815 16966
Caldarola MC 20 1823 18789
Camerino MC 20 6974 25763
Camporotondo di Fiastrone MC 20 563 26326

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
72 Km N of L'Aquila (69753 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
96 Km NW of Montesilvano (53738 inhabitants)
98 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 1.3 2018-09-12
10:17:38
42.97 13.16 10 2018-09-12
10:24:15
Sala Sismica INGV-Roma 60861761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-12 10:17:38 ± 0.05
Latitude 42.97 ± 0.00
Longitude 13.16 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 60861761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 363
Semi-minor axis of confidence ellipse (meter) 175
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) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.47664
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 60861761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-12 10:24:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2018-09-12T10:17:55.45 0.6 undecidable manual S 137 0.4766 50 0.02 46
IV.ASSB.HHZ. 2018-09-12T10:17:52.46 0.3 undecidable manual S 281 0.3723 50 0.12 69
IV.EL6.EHZ. 2018-09-12T10:17:52.04 0.3 undecidable manual S 353 0.3606 50 0.05 71
IV.MF5.EHZ. 2018-09-12T10:17:48.15 0.3 undecidable manual S 85 0.2203 111 0.53 65
IV.TERO.HHZ. 2018-09-12T10:17:48.07 0.3 undecidable manual P 137 0.4766 50 -0.21 67
IV.ASSB.HHZ. 2018-09-12T10:17:46.28 0.1 undecidable manual P 281 0.3723 50 -0.22 91
IV.CESI.HHZ. 2018-09-12T10:17:46.78 0.3 undecidable manual S 280 0.1889 114 0.27 70
IV.EL6.EHZ. 2018-09-12T10:17:46.43 0.3 undecidable manual P 353 0.3606 50 0.14 69
IV.CSP1.EHZ. 2018-09-12T10:17:44.13 0.3 undecidable manual S 15 0.125 124 -0.24 71
IV.MMO1.EHZ. 2018-09-12T10:17:44.58 0.3 undecidable manual S 120 0.1421 121 -0.33 69
IV.NRCA.HHZ. 2018-09-12T10:17:44.70 0.3 undecidable manual S 193 0.1412 121 -0.17 72
IV.CESI.HHZ. 2018-09-12T10:17:43.17 0.1 undecidable manual P 280 0.1889 114 0.04 97
IV.MF5.EHZ. 2018-09-12T10:17:43.83 0.3 undecidable manual P 85 0.2203 111 0.06 72
IV.MC2.EHZ. 2018-09-12T10:17:42.82 0.3 undecidable manual S 160 0.063 144 0.2 72
IV.MMO1.EHZ. 2018-09-12T10:17:42.05 0.1 undecidable manual P 120 0.1421 121 -0.15 96
IV.FDMO.HHZ. 2018-09-12T10:17:42.93 0.3 undecidable manual S 321 0.0836 136 -0.21 72
IV.NRCA.HHZ. 2018-09-12T10:17:42.20 0.3 undecidable manual P 193 0.1412 121 0.02 74
IV.FDMO.HHZ. 2018-09-12T10:17:41.19 0.1 undecidable manual P 321 0.0836 136 0.01 100
IV.CSP1.EHZ. 2018-09-12T10:17:41.82 0.1 undecidable manual P 15 0.125 124 -0.07 98
IV.MC2.EHZ. 2018-09-12T10:17:41.11 0.1 undecidable manual P 160 0.063 144 0.22 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.5 0.0003945 1.78 AML other m 2018-09-12T10:17:42.10
IV.FDMO.HHN. ML:1.5 0.000453 0.42 AML other m 2018-09-12T10:17:43.21
IV.CSP1.EHE. ML:1.4 0.000272 0.14 AML other m 2018-09-12T10:17:44.22
IV.CSP1.EHN. ML:1.3 0.0002055 0.3 AML other m 2018-09-12T10:17:44.22
IV.CESI.HHN. ML:1.1 9.745E-5 1.74 AML other m 2018-09-12T10:17:46.87
IV.NRCA.HHN. ML:1.2 0.000155 0.84 AML other m 2018-09-12T10:17:47.72
IV.NRCA.HHE. ML:1.2 0.000165 0.56 AML other m 2018-09-12T10:17:48.20
IV.CESI.HHE. ML:1.1 8.465E-5 0.1 AML other m 2018-09-12T10:17:48.19
IV.ASSB.HHN. ML:1.1 4.245E-5 0.54 AML other m 2018-09-12T10:17:53.57
IV.ASSB.HHE. ML:1 3.73E-5 0.18 AML other m 2018-09-12T10:17:54.20
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