Earthquake with magnitude of ML 0.8 on date 21-11-2018 and time 04:07:42 (Italy) in region 7 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 7 km SE Castelsantangelo sul Nera (MC), on

  • 21-11-2018 03:07:42 (UTC)
  • 21-11-2018 04:07:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.85, 13.22 at 8 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
Castelsantangelo sul Nera MC 7 281 281
Montegallo AP 10 523 804
Montemonaco AP 11 604 1408
Arquata del Tronto AP 11 1178 2586
Norcia PG 12 4957 7543
Ussita MC 12 444 7987
Visso MC 14 1107 9094
Preci PG 15 724 9818
Montefortino FM 15 1178 10996
Bolognola MC 16 142 11138
Accumoli RI 18 667 11805
Acquasanta Terme AP 18 2916 14721
Amandola FM 19 3629 18350

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
89 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
96 Km NW of Chieti (51815 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 0.8 2018-11-21
03:07:42
42.85 13.21 8 2018-11-21
05:55:19
Sala Sismica INGV-Roma 63247921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-21 03:07:42 ± 0.06
Latitude 42.85 ± 0.00
Longitude 13.21 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63247921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 259
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.36602
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 63247921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-21 05:55:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2018-11-21T03:07:51.98 0.6 undecidable manual S 23 0.2293 108 0.23 47
IV.TERO.HHZ. 2018-11-21T03:07:50.46 1.0 undecidable manual P 129 0.366 50 -0.09 23
IV.FDMO.HHZ. 2018-11-21T03:07:50.98 0.6 undecidable manual S 333 0.2077 109 0.02 49
IV.LNSS.HHE. 2018-11-21T03:07:49.01 1.0 undecidable manual P 207 0.2797 105 0.09 24
IV.MTRA.EHZ. 2018-11-21T03:07:49.47 0.6 undecidable manual S 125 0.1637 114 0.08 49
IV.RM33.HNZ. 2018-11-21T03:07:49.84 1.0 undecidable manual P 180 0.3417 50 -0.31 22
IV.GAVE.HNZ. 2018-11-21T03:07:49.03 1.0 undecidable manual P 236 0.2842 104 0.02 24
IV.SMA1.EHZ. 2018-11-21T03:07:48.27 1.0 undecidable manual P 158 0.2374 107 0.25 23
IV.CESI.HHN. 2018-11-21T03:07:48.75 1.0 undecidable manual P 304 0.2743 105 -0.05 24
IV.GUMA.HHZ. 2018-11-21T03:07:47.93 0.6 undecidable manual P 23 0.2293 108 0.09 48
IV.FDMO.HHZ. 2018-11-21T03:07:47.26 1.0 undecidable manual P 333 0.2077 109 -0.12 24
IV.MF5.EHZ. 2018-11-21T03:07:47.96 0.6 undecidable manual P 53 0.2257 108 0.2 47
IV.MMO1.EHZ. 2018-11-21T03:07:46.90 1.0 undecidable manual S 60 0.0953 127 -0.21 24
IV.MTRA.EHZ. 2018-11-21T03:07:46.41 0.6 undecidable manual P 125 0.1637 114 -0.06 49
IV.NRCA.HNZ. 2018-11-21T03:07:46.61 0.6 undecidable manual S 257 0.0755 134 0.06 50
IV.MC2.EHZ. 2018-11-21T03:07:46.05 0.6 undecidable manual S 343 0.063 139 -0.16 49
IV.NRCA.HNZ. 2018-11-21T03:07:44.88 0.1 undecidable manual P 257 0.0755 134 0.05 100
IV.MC2.EHZ. 2018-11-21T03:07:44.59 0.6 undecidable manual P 343 0.063 139 -0.05 50
IV.MMO1.EHZ. 2018-11-21T03:07:44.87 0.6 positive manual P 60 0.0953 127 -0.29 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHE. ML:0.6 1.4592285E-5 1.1392 AML other m 2018-11-21T03:08:10.71
IV.MTRA.EHE. ML:0.7 4.432038E-5 0.44 AML other m 2018-11-21T03:07:53.41
IV.MTRA.HNN. ML:1.1 0.00011235117 0.7008 AML other m 2018-11-21T03:07:55.18
IV.MTRA.EHN. ML:0.7 4.387445E-5 0.1392 AML other m 2018-11-21T03:07:50.19
IV.FDMO.HHN. ML:0.7 6.1310515E-5 1.8992 AML other m 2018-11-21T03:07:48.32
IV.FDMO.HHE. ML:0.6 6.4869505E-5 1.96 AML other m 2018-11-21T03:08:00.96
IV.TERO.HNE. ML:1.4 8.6761275E-5 1.0592 AML other m 2018-11-21T03:07:53.57
IV.TERO.HNN. ML:1.3 7.2027475E-5 0.6896 AML other m 2018-11-21T03:07:55.56
IV.TERO.HHN. ML:0.5 1.647929E-5 0.5008 AML other m 2018-11-21T03:07:58.86
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