Earthquake with magnitude of ML 0.6 on date 21-05-2019 and time 20:25:50 (Italy) in region 4 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 0.6 earthquake occured in region: 4 km SE Castelsantangelo sul Nera (MC), on

  • 21-05-2019 18:25:50 (UTC)
  • 21-05-2019 20:25:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.88, 13.19 at 4 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 4 281 281
Ussita MC 9 444 725
Visso MC 10 1107 1832
Montemonaco AP 11 604 2436
Montegallo AP 12 523 2959
Norcia PG 12 4957 7916
Preci PG 12 724 8640
Bolognola MC 14 142 8782
Montefortino FM 14 1178 9960
Arquata del Tronto AP 14 1178 11138
Acquacanina MC 17 121 11259
Amandola FM 18 3629 14888
Fiastra MC 18 559 15447
Fiordimonte MC 20 202 15649
Sarnano MC 20 3264 18913

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
48 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
61 Km N of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
95 Km W of Pescara (121014 inhabitants)
99 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 0.6 2019-05-21
18:25:50
42.88 13.19 4 2019-05-21
18:39:54
Sala Sismica INGV-Roma 68763361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-21 18:25:50 ± 0.11
Latitude 42.88 ± 0.00
Longitude 13.19 ± 0.00
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 68763361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 388
Semi-minor axis of confidence ellipse (meter) 115
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 140
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) 73
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.29588
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:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 68763361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-21 18:39:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2019-05-21T18:26:01.35 0.3 undecidable manual S 202 0.2959 97 -0.25 68
IV.MF5.EHZ. 2019-05-21T18:25:59.48 0.1 undecidable manual S 60 0.2248 99 0.56 85
IV.CESI.HHZ. 2019-05-21T18:25:59.76 0.3 undecidable manual S 301 0.2464 98 0.05 72
IV.CSP1.EHZ. 2019-05-21T18:25:58.29 0.3 undecidable manual S 3 0.2149 99 -0.24 69
IV.MTRA.HNZ. 2019-05-21T18:25:57.69 0.1 undecidable manual S 129 0.1925 101 0.02 97
IV.GAVE.HNZ. 2019-05-21T18:25:56.81 0.6 undecidable manual P 230 0.286 97 0.27 45
IV.LNSS.HHZ. 2019-05-21T18:25:56.56 0.1 undecidable manual P 202 0.2959 97 -0.19 92
IV.CESI.HHZ. 2019-05-21T18:25:55.76 0.3 undecidable manual P 301 0.2464 98 0.1 71
IV.GUMA.HHZ. 2019-05-21T18:25:55.13 0.6 undecidable manual P 29 0.2131 100 0.19 47
IV.MF5.EHZ. 2019-05-21T18:25:55.30 0.1 undecidable manual P 60 0.2248 99 0.09 95
IV.MTRA.HNZ. 2019-05-21T18:25:54.88 0.3 undecidable manual P 129 0.1925 101 0.4 67
IV.CSP1.EHZ. 2019-05-21T18:25:54.74 0.3 undecidable manual P 3 0.2149 99 -0.24 69
IV.NRCA.HHZ. 2019-05-21T18:25:53.41 0.1 undecidable manual S 233 0.071 117 0.19 96
IV.MMO1.EHZ. 2019-05-21T18:25:53.97 0.1 undecidable manual S 77 0.1016 110 -0.31 93
IV.MMO1.EHZ. 2019-05-21T18:25:52.14 0.1 undecidable manual P 77 0.1016 110 -0.39 92
IV.MC2.EHZ. 2019-05-21T18:25:52.11 0.1 undecidable manual S 357 0.0342 136 0.05 99
IV.NRCA.HHZ. 2019-05-21T18:25:51.89 0.1 undecidable manual P 233 0.071 117 -0.02 99
IV.MC2.EHZ. 2019-05-21T18:25:51.22 0.1 positive manual P 357 0.0342 136 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0 0.0008490004 0.1152 AML other m 2019-05-21T18:25:53.82
IV.NRCA.HHN. ML:0 0.0003879605 0.1536 AML other m 2019-05-21T18:25:54.57
IV.NRCA.HNE. ML:0 0.0008132903 0.1152 AML other m 2019-05-21T18:25:53.82
IV.FDMO.HHE. ML:0.6 3.249157E-5 0.1664 AML other m 2019-05-21T18:26:00.13
IV.FDMO.HHN. ML:0.5 2.602594E-5 0.192 AML other m 2019-05-21T18:25:58.64
IV.CESI.HHE. ML:0.5 2.218831E-5 0.256 AML other m 2019-05-21T18:26:01.46
IV.CESI.HHN. ML:0.8 3.6440845E-5 0.2432 AML other m 2019-05-21T18:26:00.82
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