INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 10-12-2018 and time 02:02:20 (Italy) in region 4 km E Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km E Monte Cavallo (MC), on

  • 10-12-2018 01:02:20 (UTC)
  • 10-12-2018 02:02:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.99, 13.05 at 12 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
Monte Cavallo MC 4 145 145
Pieve Torina MC 7 1458 1603
Fiordimonte MC 7 202 1805
Visso MC 7 1107 2912
Ussita MC 9 444 3356
Pievebovigliana MC 9 866 4222
Fiastra MC 10 559 4781
Muccia MC 11 915 5696
Acquacanina MC 11 121 5817
Preci PG 12 724 6541
Serravalle di Chienti MC 13 1070 7611
Castelsantangelo sul Nera MC 13 281 7892
Bolognola MC 15 142 8034
Sellano PG 15 1079 9113
Camerino MC 17 6974 16087
Sefro MC 20 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
55 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
65 Km NW of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
96 Km S of Fano (60888 inhabitants)
100 Km NE of Viterbo (67173 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 1.0 2018-12-10
01:02:20
42.99 13.05 12 2018-12-10
01:07:20
Sala Sismica INGV-Roma 63805931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-10 01:02:20 ± 0.05
Latitude 42.99 ± 0.00
Longitude 13.05 ± 0.00
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63805931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 336
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 46
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) 101
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.29138
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 63805931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-10 01:07:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2018-12-10T01:02:31.26 0.3 undecidable manual S 344 0.2806 92 0.1 72
IV.ASSB.HHZ. 2018-12-10T01:02:31.48 0.3 undecidable manual S 281 0.2914 91 -0.01 72
IV.MMO1.EHZ. 2018-12-10T01:02:29.32 0.1 undecidable manual S 113 0.2203 92 -0.07 96
IV.NRCA.HHZ. 2018-12-10T01:02:27.44 0.1 undecidable manual S 163 0.1592 96 -0.15 96
IV.ASSB.HHZ. 2018-12-10T01:02:26.76 0.1 positive manual P 281 0.2914 91 -0.04 96
IV.MC2.EHZ. 2018-12-10T01:02:26.79 0.3 undecidable manual S 126 0.1259 105 0.17 72
IV.SNTG.HHZ. 2018-12-10T01:02:26.59 0.3 undecidable manual P 344 0.2806 92 -0.02 72
IV.MMO1.EHZ. 2018-12-10T01:02:25.56 0.1 undecidable manual P 113 0.2203 92 -0.03 97
IV.FDMO.HHE. 2018-12-10T01:02:24.77 0.1 undecidable manual S 29 0.0576 142 -0.16 98
IV.MC2.EHZ. 2018-12-10T01:02:24.10 0.3 undecidable manual P 126 0.1259 105 0.11 73
IV.FEMA.HNN. 2018-12-10T01:02:24.57 0.3 undecidable manual S 180 0.0243 163 0.09 74
IV.NRCA.HHZ. 2018-12-10T01:02:24.55 0.1 positive manual P 163 0.1592 96 0 99
IT.MTCL.HGZ. 2018-12-10T01:02:24.43 0.1 undecidable manual S 282 0.0378 154 -0.19 98
IV.FDMO.HHE. 2018-12-10T01:02:23.07 0.1 undecidable manual P 29 0.0576 142 0.05 100
IV.FEMA.HNN. 2018-12-10T01:02:22.95 0.1 undecidable manual P 180 0.0243 163 0.2 97
IT.MTCL.HGZ. 2018-12-10T01:02:22.91 0.1 undecidable manual P 282 0.0378 154 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.000146 0.14 AML other m 2018-12-10T01:02:27.53
IV.SNTG.HHE. ML:0.8 2.91425565E-5 0.9 AML other m 2018-12-10T01:02:31.41
IV.ASSB.HHE. ML:0.8 2.747652E-5 0.08 AML other m 2018-12-10T01:02:31.73
IV.ASSB.HHN. ML:0.8 2.630175E-5 0.06 AML other m 2018-12-10T01:02:31.00
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