Earthquake with magnitude of ML 1.6 on date 23-01-2021 and time 00:52:55 (Italy) in region 7 km E Castelsantangelo sul Nera (MC)

A magnitude ML 1.6 earthquake occured in region: 7 km E Castelsantangelo sul Nera (MC), on

  • 22-01-2021 23:52:55 (UTC)
  • 23-01-2021 00:52:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8680, 13.2260 at 9 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.

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
Montemonaco AP 9 604 885
Montegallo AP 9 523 1408
Ussita MC 11 444 1852
Arquata del Tronto AP 12 1178 3030
Montefortino FM 13 1178 4208
Visso MC 13 1107 5315
Norcia PG 14 4957 10272
Bolognola MC 14 142 10414
Preci PG 15 724 11138
Amandola FM 16 3629 14767
Comunanza AP 18 3166 17933
Acquacanina MC 19 121 18054
Acquasanta Terme AP 19 2916 20970
Palmiano AP 19 196 21166
Accumoli RI 19 667 21833
Fiastra MC 20 559 22392
Sarnano MC 20 3264 25656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
46 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
87 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.6 2021-01-22
23:52:55
42.8685 13.2262 9 2021-07-12
16:54:57
Bollettino Sismico Italiano INGV 86813221
Reviewed
Rev100
ML 1.6 2021-01-22
23:52:55
42.8753 13.2317 9 2021-01-22
23:59:22
Sala Sismica INGV-Roma 86473721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-22 23:52:55 ± 0.07
Latitude 42.8685 ± 0.0036
Longitude 13.2262 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86813221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 386
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.66280
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:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 86813221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-03 17:45:40

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 86473721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-22 23:59:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-01-22T23:53:12.30 0.6 undecidable manual S 293 49.9167 50 0.48 43
IV.ARVD.HHZ. 2021-01-22T23:53:08.56 0.3 undecidable manual P 342 73.5708 50 -0.01 67
IV.LNSS.HHZ. 2021-01-22T23:53:07.64 0.3 undecidable manual S 207 33.1446 50 0.32 68
IV.CESI.HHZ. 2021-01-22T23:53:06.70 0.6 undecidable manual S 300 30.1476 106 0.23 46
IV.SMA1.EHZ. 2021-01-22T23:53:05.83 0.3 undecidable manual S 161 27.8499 108 0.13 71
IV.CSP1.EHZ. 2021-01-22T23:53:04.60 0.3 undecidable manual S 356 24.8529 110 -0.11 72
IV.ASSB.HHZ. 2021-01-22T23:53:04.75 0.1 undecidable manual P 293 49.9167 50 -0.19 91
IV.GUMA.HNN. 2021-01-22T23:53:04.92 0.3 undecidable manual S 22 23.2545 111 0.72 61
IV.TERO.HHZ. 2021-01-22T23:53:03.23 0.3 undecidable manual P 131 41.1255 50 -0.35 67
IV.MTRA.EHZ. 2021-01-22T23:53:03.12 0.3 undecidable manual S 132 18.5703 116 0.41 68
IV.RM33.HNE. 2021-01-22T23:53:03.72 0.3 undecidable manual P 181 39.9267 50 0.33 67
IV.FDMO.HHZ. 2021-01-22T23:53:03.91 0.3 undecidable manual S 329 21.7671 112 0.19 71
IV.LNSS.HHZ. 2021-01-22T23:53:02.10 0.3 undecidable manual P 207 33.1446 50 -0.24 69
IV.CAMP.HHE. 2021-01-22T23:53:02.99 0.6 undecidable manual P 158 39.8268 50 -0.38 44
IV.MF5.EHN. 2021-01-22T23:53:01.00 0.3 undecidable manual P 55 23.1546 111 0.49 67
IV.SMA1.EHZ. 2021-01-22T23:53:01.17 0.1 positive manual P 161 27.8499 108 -0.23 93
IV.CESI.HHZ. 2021-01-22T23:53:01.60 0.1 negative manual P 300 30.1476 106 -0.25 93
IV.FDMO.HHZ. 2021-01-22T23:53:00.07 0.1 negative manual P 329 21.7671 112 -0.19 95
IV.GUMA.HNN. 2021-01-22T23:53:00.72 0.3 undecidable manual P 22 23.2545 111 0.17 71
IV.NRCA.HNZ. 2021-01-22T23:53:00.35 0.3 undecidable manual S 247 9.879 132 0.18 73
IV.CSP1.EHZ. 2021-01-22T23:53:00.47 0.1 negative manual P 356 24.8529 110 -0.37 91
IV.MMO1.EHZ. 2021-01-22T23:52:59.48 0.3 undecidable manual S 67 8.88 135 -0.44 69
IV.FEMA.HNE. 2021-01-22T23:52:59.52 0.3 undecidable manual P 306 17.6712 117 0 75
IV.MTRA.EHZ. 2021-01-22T23:52:59.70 0.1 negative manual P 132 18.5703 116 0.02 99
IV.NRCA.HNZ. 2021-01-22T23:52:58.17 0.1 positive manual P 247 9.879 132 -0.05 100
IV.MMO1.EHZ. 2021-01-22T23:52:57.94 0.1 negative manual P 67 8.88 135 -0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.4 0.0038799999999999998 0.12 AML other m 2021-01-22T23:53:00.51
IV.NRCA.HNN. ML:2.4 0.003565 0.12 AML other m 2021-01-22T23:53:00.51
IV.NRCA.HHE. ML:2.2 0.0020233259999999998 0.128 AML other m 2021-01-22T23:53:00.74
IV.NRCA.HNE. ML:2.2 0.001985 0.12 AML other m 2021-01-22T23:53:00.81
IV.MTRA.EHE. ML:1.6 0.00029823335 0.3072 AML other m 2021-01-22T23:53:05.51
IV.FDMO.HHN. ML:1.5 0.0002065 0.18 AML other m 2021-01-22T23:53:04.13
IV.FDMO.HHE. ML:1.4 0.0001915 0.34 AML other m 2021-01-22T23:53:04.41
IV.MTRA.EHN. ML:1.8 0.0004805 0.3 AML other m 2021-01-22T23:53:04.91
IV.CESI.HHN. ML:1.7 0.00025427165000000004 0.256 AML other m 2021-01-22T23:53:09.02
IV.CESI.HHE. ML:1.5 0.0001575 0.48 AML other m 2021-01-22T23:53:08.32
IV.LNSS.HHN. ML:1.7 0.00022361315 0.2176 AML other m 2021-01-22T23:53:08.22
IV.TERO.HHE. ML:1.2 0.000051855870000000004 0.2688 AML other m 2021-01-22T23:53:10.36
IV.LNSS.HHE. ML:1.5 0.00015089591 0.1792 AML other m 2021-01-22T23:53:09.41
IV.SMA1.EHN. ML:1.4 0.00013303095000000002 0.4992 AML other m 2021-01-22T23:53:07.20
IV.SMA1.EHE. ML:1.4 0.00014081455 1.024 AML other m 2021-01-22T23:53:07.07
IV.ASSB.HHN. ML:1.4 0.00006161855500000001 0.2944 AML other m 2021-01-22T23:53:12.96
IV.ASSB.HHE. ML:1.4 0.00006911998 0.2176 AML other m 2021-01-22T23:53:13.34
IV.TERO.HHN. ML:1.3 0.00006854064 0.2304 AML other m 2021-01-22T23:53:10.11
IV.MTRA.HNE. ML:1.6 0.00032151375 0.2944 AML other m 2021-01-22T23:53:05.51
IV.MTRA.HNN. ML:1.8 0.00047281205000000004 0.32 AML other m 2021-01-22T23:53:04.91
IV.CSP1.EHE. ML:1.7 0.00029831305 0.2944 AML other m 2021-01-22T23:53:06.42
IV.CSP1.EHN. ML:1.8 0.00039099115000000004 0.32 AML other m 2021-01-22T23:53:05.71
IV.CESI.HNE. ML:1.6 0.00020201774999999999 0.4096 AML other m 2021-01-22T23:53:08.33
IV.CESI.HNN. ML:2.1 0.00056393245 0.3712 AML other m 2021-01-22T23:53:07.32
IV.LNSS.HNN. ML:1.7 0.00022254730000000002 0.2176 AML other m 2021-01-22T23:53:08.22
IV.LNSS.HNE. ML:1.6 0.00015535230849999997 0.1664 AML other m 2021-01-22T23:53:09.42
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