Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 09-06-2021 and time 02:30:53 (UTC) in region 1 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 0.5 earthquake occured in region: 1 km SE Castelsantangelo sul Nera (MC), on

  • 09-06-2021 02:30:53 (UTC)
  • 09-06-2021 04:30:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8880, 13.1650 at 6 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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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 1 281 281
Ussita MC 7 444 725
Visso MC 8 1107 1832
Preci PG 10 724 2556
Norcia PG 12 4957 7513
Bolognola MC 13 142 7655
Montemonaco AP 13 604 8259
Montegallo AP 15 523 8782
Montefortino FM 16 1178 9960
Acquacanina MC 16 121 10081
Fiastra MC 17 559 10640
Arquata del Tronto AP 17 1178 11818
Fiordimonte MC 18 202 12020
Monte Cavallo MC 18 145 12165
Amandola FM 19 3629 15794
Sellano PG 19 1079 16873
Pieve Torina MC 20 1458 18331
Sarnano MC 20 3264 21595

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
98 Km W of Pescara (121014 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 0.5 2021-06-09
02:30:53		 42.8878 13.1653 6 2021-12-29
11:12:09		 Bollettino Sismico Italiano INGV 92360251
Reviewed
Rev100 		ML 0.9 2021-06-09
02:30:53		 42.8968 13.171 7 2021-06-09
02:38:03		 Sala Sismica INGV-Roma 90957161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-09 02:30:53 ± 0.05
Latitude 42.8878 ± 0.0018
Longitude 13.1653 ± 0.0037
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92360251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 236
Semi-minor axis of confidence ellipse (meter) 156
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.44426
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 92360251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-07 13:28:21

ML:0.9

Field Value
Value 0.9
Uncertainty 0.5
Num. used stations 4
Type of magnitude ML
Reference to an origin 90957161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-09 02:38:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HNZ. 2021-06-09T02:31:10.73 0.3 undecidable manual S 259 49.3173 50 0.22 66
IV.ASSB.HHN. 2021-06-09T02:31:08.92 0.6 undecidable manual S 293 44.5221 50 -0.33 44
IV.LNSS.HNZ. 2021-06-09T02:31:05.58 0.6 undecidable manual S 198 33.2445 100 0.06 47
IV.T1299.HNN. 2021-06-09T02:31:04.39 0.3 undecidable manual S 161 29.6481 102 0.06 71
IV.MML1.HNZ. 2021-06-09T02:31:04.09 0.3 undecidable manual S 328 29.5482 102 -0.19 69
IV.GAVE.EHN. 2021-06-09T02:31:04.48 0.3 undecidable manual S 226 30.9468 101 -0.27 68
IV.SMA1.EHN. 2021-06-09T02:31:04.64 0.3 undecidable manual S 154 31.746 101 -0.38 66
IV.MF5.EHZ. 2021-06-09T02:31:03.44 0.3 undecidable manual S 65 26.3514 103 0.25 69
IV.MOMA.HNZ. 2021-06-09T02:31:03.69 0.3 undecidable manual P 259 49.3173 50 0.24 66
IV.CSP1.EHZ. 2021-06-09T02:31:02.04 0.6 undecidable manual S 8 22.8549 105 0.02 48
IV.MTRA.HNZ. 2021-06-09T02:31:02.39 0.6 undecidable manual S 128 23.754 104 0.06 48
IV.ASSB.HHN. 2021-06-09T02:31:02.99 0.3 undecidable manual P 293 44.5221 50 0.27 66
IV.CESI.HNZ. 2021-06-09T02:31:02.96 0.3 undecidable manual S 302 24.8529 104 0.28 68
IV.GUMA.HHZ. 2021-06-09T02:31:02.70 0.3 undecidable manual S 35 23.754 104 0.37 67
IV.GAVE.EHN. 2021-06-09T02:31:00.26 0.3 undecidable manual P 226 30.9468 101 0.14 70
IV.FDMO.HHZ. 2021-06-09T02:31:00.14 0.3 undecidable manual S 339 17.6712 109 -0.16 71
IV.LNSS.HNZ. 2021-06-09T02:31:00.36 0.6 undecidable manual P 198 33.2445 100 -0.21 46
IV.SMA1.EHN. 2021-06-09T02:30:59.91 0.3 undecidable manual P 154 31.746 101 -0.37 66
IV.T1299.HNN. 2021-06-09T02:30:59.67 0.1 undecidable manual P 161 29.6481 102 -0.21 92
IV.MF5.EHZ. 2021-06-09T02:30:59.44 0.3 undecidable manual P 65 26.3514 103 0.22 69
IV.MML1.HNZ. 2021-06-09T02:30:59.47 0.3 undecidable manual P 328 29.5482 102 -0.38 66
IV.GUMA.HHZ. 2021-06-09T02:30:58.74 0.1 undecidable manual P 35 23.754 104 0.01 97
IV.CSP1.EHZ. 2021-06-09T02:30:58.28 0.3 undecidable manual P 8 22.8549 105 -0.27 69
IV.MTRA.HNZ. 2021-06-09T02:30:58.66 0.3 undecidable manual P 128 23.754 104 -0.06 72
IV.MMO1.EHZ. 2021-06-09T02:30:58.88 0.3 undecidable manual S 84 13.1757 115 0.03 74
IV.CESI.HNZ. 2021-06-09T02:30:58.77 0.3 undecidable manual P 302 24.8529 104 -0.16 70
IV.FDMO.HHZ. 2021-06-09T02:30:57.41 0.3 undecidable manual P 339 17.6712 109 -0.14 71
IV.NRCA.HHZ. 2021-06-09T02:30:57.55 0.3 undecidable manual S 215 7.2927 130 0.43 68
IV.MC2.EHZ. 2021-06-09T02:30:56.07 0.1 undecidable manual S 36 3.2967 152 -0.14 97
IV.NRCA.HHZ. 2021-06-09T02:30:56.11 0.1 positive manual P 215 7.2927 130 0.4 92
IV.MMO1.EHZ. 2021-06-09T02:30:56.76 0.1 positive manual P 84 13.1757 115 0.04 98
IV.MC2.EHZ. 2021-06-09T02:30:55.21 0.1 undecidable manual P 36 3.2967 152 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.4 0.000024399999999999997 0.12 AML other m 2021-06-09T02:31:01.31
IV.FDMO.HHN. ML:0.5 0.0000323 0.72 AML other m 2021-06-09T02:31:01.75
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download