Earthquake with magnitude of ML 1.2 on date 31-05-2020 and time 22:02:55 (Italy) in region 4 km E Castelsantangelo sul Nera (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km E Castelsantangelo sul Nera (MC), on

  • 31-05-2020 20:02:55 (UTC)
  • 31-05-2020 22:02:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.91, 13.2 at 11 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 6 444 725
Visso MC 9 1107 1832
Bolognola MC 10 142 1974
Montemonaco AP 11 604 2578
Montefortino FM 12 1178 3756
Montegallo AP 13 523 4279
Acquacanina MC 13 121 4400
Preci PG 14 724 5124
Fiastra MC 14 559 5683
Amandola FM 15 3629 9312
Norcia PG 16 4957 14269
Sarnano MC 16 3264 17533
Fiordimonte MC 17 202 17735
Arquata del Tronto AP 17 1178 18913
Comunanza AP 18 3166 22079
Monte Cavallo MC 19 145 22224
Pieve Torina MC 19 1458 23682
Pievebovigliana MC 19 866 24548

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
50 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
64 Km N of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
97 Km NW of Pescara (121014 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
Reviewed
Rev100
ML 1.2 2020-05-31
20:02:55
42.91 13.2 11 2020-05-31
20:09:32
Sala Sismica INGV-Roma 79759631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-31 20:02:55 ± 0.05
Latitude 42.91 ± 0.00
Longitude 13.20 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79759631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 449
Semi-minor axis of confidence ellipse (meter) 285
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.7959
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 23
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 79759631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-31 20:09:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RONT.HHZ. 2020-05-31T20:03:24.41 3.0 negative manual Pn 0.71 0
IV.APEC.HHZ. 2020-05-31T20:03:21.52 3.0 undecidable manual S -3.78 0
IV.LRP.EHZ. 2020-05-31T20:03:18.73 3.0 undecidable manual P 0.2 0
IV.ARVD.HHZ. 2020-05-31T20:03:16.89 0.3 undecidable manual S 342 0.6151 50 0.88 52
IV.ATCC.EHZ. 2020-05-31T20:03:13.03 0.6 undecidable manual S 304 0.491 50 0.68 39
IV.TERO.HHZ. 2020-05-31T20:03:10.30 0.6 undecidable manual S 134 0.4146 50 0.23 45
IV.ASSB.HHZ. 2020-05-31T20:03:10.46 0.6 undecidable manual S 288 0.4164 50 0.34 44
IV.MGAB.HHZ. 2020-05-31T20:03:10.29 0.3 undecidable manual P 270 0.7959 50 -0.03 65
IV.MURB.HHZ. 2020-05-31T20:03:07.03 0.1 undecidable manual P 306 0.6043 50 -0.02 90
IV.LNSS.HHZ. 2020-05-31T20:03:07.89 0.6 undecidable manual S 201 0.3301 50 0.31 45
IV.ARVD.HHZ. 2020-05-31T20:03:07.43 0.1 undecidable manual P 342 0.6151 50 0.2 87
IV.SMA1.EHZ. 2020-05-31T20:03:06.61 0.6 undecidable manual S 160 0.2986 50 -0.03 48
IV.PF6.EHZ. 2020-05-31T20:03:04.12 0.6 undecidable manual S 359 0.2257 50 -0.36 45
IV.CESI.HHZ. 2020-05-31T20:03:04.81 0.6 undecidable manual S 293 0.2347 50 0.07 48
IV.ATCC.EHZ. 2020-05-31T20:03:04.97 0.1 undecidable manual P 304 0.491 50 -0.15 90
IV.SNTG.HHZ. 2020-05-31T20:03:03.19 0.1 undecidable manual P 331 0.3912 50 -0.22 91
IV.ASSB.HHZ. 2020-05-31T20:03:03.56 0.3 positive manual P 288 0.4164 50 -0.27 67
IV.EL6.EHZ. 2020-05-31T20:03:03.67 0.6 undecidable manual P 350 0.4227 50 -0.28 44
IV.MTRA.EHZ. 2020-05-31T20:03:03.73 0.6 undecidable manual S 137 0.2122 50 -0.35 46
IV.CAMP.HHZ. 2020-05-31T20:03:03.35 0.1 undecidable manual P 158 0.4065 50 -0.31 89
IV.TERO.HHZ. 2020-05-31T20:03:03.76 0.6 undecidable manual P 134 0.4146 50 -0.04 47
IT.MTCL.HGZ. 2020-05-31T20:03:02.45 0.6 undecidable manual S 299 0.1673 120 -0.22 47
IV.CSP1.EHZ. 2020-05-31T20:03:02.84 0.6 undecidable manual S 1 0.1799 118 -0.24 47
IV.LNSS.HHZ. 2020-05-31T20:03:02.26 0.3 undecidable manual P 201 0.3301 50 -0.1 70
IV.MNTT.EHZ. 2020-05-31T20:03:02.90 0.1 positive manual P 63 0.3265 50 0.61 83
IV.FDMO.HHN. 2020-05-31T20:03:01.76 0.6 undecidable manual S 327 0.1493 123 -0.3 47
IV.SMA1.EHZ. 2020-05-31T20:03:01.69 1.0 positive manual P 160 0.2986 50 -0.13 24
IV.FEMA.HNE. 2020-05-31T20:03:01.31 0.6 undecidable manual S 295 0.1205 129 0.16 48
IV.CESI.HHZ. 2020-05-31T20:03:00.44 0.6 undecidable manual P 293 0.2347 50 -0.29 46
IV.PF6.EHZ. 2020-05-31T20:03:00.24 0.1 undecidable manual P 359 0.2257 50 -0.33 91
IV.MMO1.EHZ. 2020-05-31T20:03:00.39 0.6 undecidable manual S 98 0.0944 135 -0.02 50
IV.NRCA.HNZ. 2020-05-31T20:03:00.60 0.6 undecidable manual S 218 0.0998 134 0.03 50
IV.MTRA.EHZ. 2020-05-31T20:03:00.13 1.0 undecidable manual P 137 0.2122 50 -0.21 24
IV.MC2.EHZ. 2020-05-31T20:02:59.43 0.6 undecidable manual S 265 0.0072 175 0.49 46
IT.MTCL.HGZ. 2020-05-31T20:02:59.36 0.1 undecidable manual P 299 0.1673 120 -0.17 96
IV.GUMA.HHZ. 2020-05-31T20:02:59.92 0.1 undecidable manual P 33 0.1808 118 0.14 96
IV.CSP1.EHZ. 2020-05-31T20:02:59.63 0.6 undecidable manual P 1 0.1799 118 -0.13 48
IV.FDMO.HHN. 2020-05-31T20:02:59.02 0.1 undecidable manual P 327 0.1493 123 -0.15 96
IV.NRCA.HNZ. 2020-05-31T20:02:58.45 0.1 positive manual P 218 0.0998 134 0.14 98
IV.FEMA.HNE. 2020-05-31T20:02:58.82 0.1 undecidable manual P 295 0.1205 129 0.17 97
IV.MMO1.EHZ. 2020-05-31T20:02:58.24 0.1 undecidable manual P 98 0.0944 135 0.02 100
IV.MC2.EHZ. 2020-05-31T20:02:57.71 1.0 undecidable manual P 265 0.0072 175 0.34 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.2 0.001695 0.12 AML other m 2020-05-31T20:03:00.80
IV.NRCA.HHN. ML:2.2 0.001965 0.16 AML other m 2020-05-31T20:03:00.72
IV.NRCA.HHE. ML:2.2 0.001925 0.16 AML other m 2020-05-31T20:03:00.80
IV.NRCA.HNN. ML:2.2 0.00196 0.16 AML other m 2020-05-31T20:03:00.80
IV.MTRA.EHN. ML:1.4 0.0001625 0.74 AML other m 2020-05-31T20:03:03.99
IV.MTRA.EHE. ML:1.3 0.0001335 1.02 AML other m 2020-05-31T20:03:04.73
IV.CESI.HHE. ML:1.2 9.515E-5 1.48 AML other m 2020-05-31T20:03:04.05
IV.CESI.HHN. ML:1.5 0.000163 1.72 AML other m 2020-05-31T20:03:04.06
IV.LNSS.HHE. ML:1.4 8.365E-5 1.04 AML other m 2020-05-31T20:03:08.74
IV.SMA1.EHN. ML:1 4.455E-5 0.86 AML other m 2020-05-31T20:03:08.26
IV.SMA1.EHE. ML:1 4.215E-5 0.18 AML other m 2020-05-31T20:03:08.81
IV.LNSS.HHN. ML:1.3 7.38E-5 0.14 AML other m 2020-05-31T20:03:08.78
IV.CAMP.HHE. ML:0.9 2.335E-5 0.58 AML other m 2020-05-31T20:03:10.13
IV.CAMP.HHN. ML:0.8 1.85E-5 1.46 AML other m 2020-05-31T20:03:10.15
IV.SNTG.HHE. ML:0.7 1.49E-5 1.5 AML other m 2020-05-31T20:03:10.97
IV.SNTG.HHN. ML:0.8 1.81E-5 1.12 AML other m 2020-05-31T20:03:10.98
IV.TERO.HHE. ML:1.1 3.95E-5 0.12 AML other m 2020-05-31T20:03:11.21
IV.TERO.HHN. ML:1.2 5.165E-5 0.76 AML other m 2020-05-31T20:03:11.88
IV.ASSB.HHE. ML:1.2 4.87E-5 0.36 AML other m 2020-05-31T20:03:11.46
IV.ASSB.HHN. ML:1.1 3.69E-5 0.1 AML other m 2020-05-31T20:03:11.67
IV.ATCC.EHN. ML:1 2.505E-5 0.42 AML other m 2020-05-31T20:03:13.40
IV.ATCC.EHE. ML:1.1 3.05E-5 0.44 AML other m 2020-05-31T20:03:15.22
IV.MURB.HHN. ML:1.4 3.975E-5 1.02 AML other m 2020-05-31T20:03:20.69
IV.MURB.HHE. ML:1.3 3.635E-5 1.28 AML other m 2020-05-31T20:03:21.14
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