Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 10-10-2020 and time 22:01:48 (UTC) in region 4 km SW Arquata del Tronto (AP)

A magnitude ML 1.9 earthquake occured in region: 4 km SW Arquata del Tronto (AP), on

  • 10-10-2020 22:01:48 (UTC)
  • 11-10-2020 00:01:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7530, 13.2520 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Arquata del Tronto AP 4 1178 1178
Accumoli RI 6 667 1845
Montegallo AP 12 523 2368
Acquasanta Terme AP 13 2916 5284
Norcia PG 14 4957 10241
Amatrice RI 14 2657 12898
Cittareale RI 17 482 13380
Montemonaco AP 18 604 13984
Castelsantangelo sul Nera MC 18 281 14265
Cascia PG 20 3217 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
46 Km N of L'Aquila (69753 inhabitants)
50 Km E of Foligno (57155 inhabitants)
54 Km E of Terni (111501 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
81 Km E of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
87 Km NW of Chieti (51815 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
99 Km S of Ancona (100861 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 1.9 2020-10-10
22:01:48		 42.7528 13.2517 10 2021-02-26
14:56:04		 Bollettino Sismico Italiano INGV 84608161
Reviewed
Rev100 		ML 1.9 2020-10-10
22:01:48		 42.7553 13.2538 11 2020-10-10
22:07:47		 Sala Sismica INGV-Roma 83688611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-10 22:01:48 ± 0.06
Latitude 42.7528 ± 0.0027
Longitude 13.2517 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84608161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 307
Semi-minor axis of confidence ellipse (meter) 205
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
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 67
Number of defining phases 63
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62233
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 84608161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-10 15:03:11

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 83688611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-10 22:07:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAON.HHZ. 2020-10-10T22:02:41.34 3.0 undecidable manual Sg 4.24 0
IV.ARVD.HHZ. 2020-10-10T22:02:16.30 3.0 undecidable manual S 0.38 0
IV.ATCC.EHZ. 2020-10-10T22:02:09.90 0.1 undecidable manual S 314 69.0753 50 0.35 85
IV.VCEL.EHZ. 2020-10-10T22:02:08.37 0.3 undecidable manual S 129 62.3931 50 0.59 60
IV.ASSB.HHZ. 2020-10-10T22:02:06.86 0.1 undecidable manual S 304 57.8976 50 0.28 88
IV.CESX.HHZ. 2020-10-10T22:02:06.57 0.1 undecidable manual S 254 56.499 50 0.36 87
IT.GNU.HGE. 2020-10-10T22:02:06.85 0.3 undecidable manual S 276 55.7997 50 0.84 55
IV.MOMA.HNZ. 2020-10-10T22:02:06.63 0.3 undecidable manual S 276 55.7997 50 0.62 60
MN.AQU.HNN. 2020-10-10T22:02:04.08 0.3 undecidable manual S 164 46.0206 50 0.68 60
IV.ARRO.EHZ. 2020-10-10T22:02:03.04 0.1 undecidable manual S 244 44.1225 50 0.15 93
IV.MML1.HNE. 2020-10-10T22:02:03.56 0.1 undecidable manual S 330 46.0206 50 0.16 92
IV.SAP2.EHE. 2020-10-10T22:02:02.56 0.1 undecidable manual S 17 39.9267 50 0.77 78
IV.PF6.EHN. 2020-10-10T22:02:02.75 0.1 undecidable manual S 354 42.9237 50 0.16 93
IV.GIGS.HHN. 2020-10-10T22:02:02.24 0.1 undecidable manual S 142 42.3243 50 -0.18 92
IV.MNTT.EHZ. 2020-10-10T22:02:02.97 0.1 undecidable manual S 39 44.2224 50 0.04 95
IV.CSP1.EHZ. 2020-10-10T22:02:01.02 0.1 undecidable manual S 354 37.8288 50 -0.19 93
IV.CESI.HHZ. 2020-10-10T22:02:01.67 0.1 undecidable manual S 315 39.7269 50 -0.05 95
IV.T0110.HHZ. 2020-10-10T22:02:01.42 3.0 positive manual P -0.08 0
IV.ATCC.EHZ. 2020-10-10T22:02:00.70 0.1 undecidable manual P 314 69.0753 50 0.05 90
IV.GUMA.HHZ. 2020-10-10T22:02:00.92 0.1 undecidable manual S 11 35.0427 50 0.45 88
IV.FAGN.HHZ. 2020-10-10T22:02:00.15 3.0 positive manual P 0.62 0
IV.TRTR.HHZ. 2020-10-10T22:01:59.16 0.1 undecidable manual P 83 54.2013 50 0.79 75
IT.MTCL.HGE. 2020-10-10T22:01:59.59 0.3 undecidable manual S 323 33.744 50 -0.52 65
IV.MF5.EHZ. 2020-10-10T22:01:59.92 0.1 undecidable manual S 33 31.0467 50 0.51 88
IV.FDMO.HHZ. 2020-10-10T22:01:59.62 0.1 undecidable manual S 337 34.1436 50 -0.63 83
IV.VCEL.EHZ. 2020-10-10T22:01:59.45 0.1 undecidable manual P 129 62.3931 50 -0.17 89
IV.TERO.HHZ. 2020-10-10T22:01:59.06 0.3 undecidable manual S 117 32.1456 50 -0.64 62
IT.GNU.HGE. 2020-10-10T22:01:59.25 0.3 undecidable manual P 276 55.7997 50 0.64 60
IV.RM33.EHZ. 2020-10-10T22:01:58.26 0.1 undecidable manual S 186 27.2505 50 -0.13 96
IV.MOMA.HNZ. 2020-10-10T22:01:58.50 0.3 undecidable manual P 276 55.7997 50 -0.11 69
IV.FEMA.HNE. 2020-10-10T22:01:58.40 0.1 undecidable manual S 325 28.4493 50 -0.31 92
IV.ASSB.HHZ. 2020-10-10T22:01:58.56 0.1 undecidable manual P 304 57.8976 50 -0.37 86
IV.GAVE.EHZ. 2020-10-10T22:01:58.99 0.1 undecidable manual S 257 29.9478 50 -0.11 96
IV.CESX.HHZ. 2020-10-10T22:01:58.78 0.1 undecidable manual P 254 56.499 50 0.06 92
IV.MNTT.EHZ. 2020-10-10T22:01:57.42 0.1 undecidable manual P 39 44.2224 50 0.6 83
IV.LNSS.HHZ. 2020-10-10T22:01:57.44 0.1 undecidable manual S 226 23.9538 50 -0.08 97
MN.AQU.HNN. 2020-10-10T22:01:57.49 0.3 undecidable manual P 164 46.0206 50 0.4 66
IV.CAMP.HHZ. 2020-10-10T22:01:57.95 0.1 undecidable manual S 152 27.2505 50 -0.45 89
IV.ARRO.EHZ. 2020-10-10T22:01:56.76 0.1 undecidable manual P 244 44.1225 50 -0.05 95
IV.MML1.HNE. 2020-10-10T22:01:56.80 0.1 undecidable manual P 330 46.0206 50 -0.31 89
IV.SAP2.EHE. 2020-10-10T22:01:56.23 0.1 undecidable manual P 17 39.9267 50 0.06 95
IV.PF6.EHN. 2020-10-10T22:01:56.21 0.1 undecidable manual P 354 42.9237 50 -0.42 88
IV.GIGS.HHN. 2020-10-10T22:01:56.10 0.1 undecidable manual P 142 42.3243 50 -0.43 87
IV.MMO1.EHZ. 2020-10-10T22:01:55.34 0.1 undecidable manual S 21 17.3715 121 -0.15 97
IV.GUMA.HHZ. 2020-10-10T22:01:55.32 0.1 undecidable manual P 11 35.0427 50 -0.09 95
IV.MC2.EHZ. 2020-10-10T22:01:55.98 0.1 undecidable manual S 344 18.2706 119 0.19 96
IV.CSP1.EHZ. 2020-10-10T22:01:55.48 0.1 negative manual P 354 37.8288 50 -0.36 90
IV.CESI.HHZ. 2020-10-10T22:01:55.84 0.1 positive manual P 315 39.7269 50 -0.29 91
IV.GAVE.EHZ. 2020-10-10T22:01:54.44 0.1 positive manual P 257 29.9478 50 -0.18 94
IV.FDMO.HHZ. 2020-10-10T22:01:54.96 0.1 undecidable manual P 337 34.1436 50 -0.32 91
IV.TERO.HHZ. 2020-10-10T22:01:54.69 0.3 undecidable manual P 117 32.1456 50 -0.28 69
IV.NRCA.HNZ. 2020-10-10T22:01:54.58 0.1 undecidable manual S 309 14.3745 126 -0.04 100
IV.RM33.EHZ. 2020-10-10T22:01:54.02 0.1 positive manual P 186 27.2505 50 -0.18 95
IT.MTCL.HGE. 2020-10-10T22:01:54.78 0.3 undecidable manual P 323 33.744 50 -0.42 67
IV.T1299.HNN. 2020-10-10T22:01:54.88 0.1 undecidable manual S 169 13.3755 128 0.53 90
IV.FEMA.HNE. 2020-10-10T22:01:54.02 0.1 undecidable manual P 325 28.4493 50 -0.37 91
IV.MF5.EHZ. 2020-10-10T22:01:54.82 0.1 undecidable manual P 33 31.0467 50 0.02 97
IV.SMA1.EHZ. 2020-10-10T22:01:54.63 0.1 undecidable manual S 153 15.1737 124 -0.23 96
IV.LNSS.HHZ. 2020-10-10T22:01:53.59 0.1 positive manual P 226 23.9538 50 -0.11 97
IV.MTRA.HNZ. 2020-10-10T22:01:53.88 0.1 undecidable manual S 88 11.7771 131 -0.05 100
IV.CAMP.HHZ. 2020-10-10T22:01:53.93 0.1 undecidable manual P 152 27.2505 50 -0.28 93
IV.T1299.HNN. 2020-10-10T22:01:52.19 0.1 positive manual P 169 13.3755 128 0.31 94
IV.SMA1.EHZ. 2020-10-10T22:01:52.25 0.1 negative manual P 153 15.1737 124 0.08 99
IV.MMO1.EHZ. 2020-10-10T22:01:52.44 0.1 negative manual P 21 17.3715 121 -0.1 98
IV.NRCA.HNZ. 2020-10-10T22:01:52.07 0.1 positive manual P 309 14.3745 126 0.04 100
IV.MC2.EHZ. 2020-10-10T22:01:52.71 0.1 undecidable manual P 344 18.2706 119 0.01 100
IV.MTRA.HNZ. 2020-10-10T22:01:51.69 0.1 negative manual P 88 11.7771 131 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.9 0.00084796235 0.1536 AML other m 2020-10-10T22:01:54.01
IV.MTRA.HNE. ML:1.9 0.0008886963999999999 0.3072 AML other m 2020-10-10T22:01:54.00
IV.MTRA.HNN. ML:1.8 0.00068023895 0.1536 AML other m 2020-10-10T22:01:54.30
IV.MTRA.EHN. ML:1.7 0.0005932369500000001 0.1664 AML other m 2020-10-10T22:01:54.04
IV.NRCA.HNN. ML:2.2 0.001583486 0.0896 AML other m 2020-10-10T22:01:54.76
IV.NRCA.HNE. ML:2.2 0.001574943 0.1024 AML other m 2020-10-10T22:01:54.71
IV.NRCA.HHN. ML:2.2 0.0016977750000000001 0.2432 AML other m 2020-10-10T22:01:54.76
IV.NRCA.HHE. ML:2.2 0.001780335 0.1024 AML other m 2020-10-10T22:01:54.76
IV.SMA1.EHE. ML:1.7 0.0005127223 0.1664 AML other m 2020-10-10T22:01:55.06
IV.SMA1.EHN. ML:1.8 0.00056348235 0.0896 AML other m 2020-10-10T22:01:55.28
IV.LNSS.HNE. ML:2.2 0.00105657165 0.1536 AML other m 2020-10-10T22:01:57.81
IV.LNSS.HHE. ML:2.3 0.00117617975 0.1664 AML other m 2020-10-10T22:01:57.82
IV.LNSS.HNN. ML:2.1 0.00078093325 0.3712 AML other m 2020-10-10T22:01:57.76
IV.LNSS.HHN. ML:2.2 0.0010936405 0.1792 AML other m 2020-10-10T22:01:58.03
IV.RM33.HNN. ML:2.0 0.00059799295 0.1408 AML other m 2020-10-10T22:01:58.64
IV.RM33.HNE. ML:1.9 0.00043860450000000005 0.1408 AML other m 2020-10-10T22:01:58.61
IV.RM33.EHE. ML:1.9 0.00045419905 0.1152 AML other m 2020-10-10T22:01:58.62
IV.RM33.EHN. ML:2.0 0.0006067843500000001 0.1408 AML other m 2020-10-10T22:01:58.65
IV.GAVE.HNE. ML:2.0 0.0004752286999999999 0.5632 AML other m 2020-10-10T22:01:59.58
IV.GAVE.EHE. ML:2.0 0.00046886229999999995 0.5888 AML other m 2020-10-10T22:01:59.30
IV.GAVE.EHN. ML:1.7 0.00024874075 0.3968 AML other m 2020-10-10T22:01:59.51
IV.TERO.HNE. ML:2.1 0.0006090193499999999 0.0768 AML other m 2020-10-10T22:01:59.56
IV.TERO.HHE. ML:2.1 0.0005544168499999999 0.064 AML other m 2020-10-10T22:01:59.52
IV.TERO.HNN. ML:2.1 0.00057981705 0.0768 AML other m 2020-10-10T22:01:59.76
IV.TERO.HHN. ML:2.0 0.0005420262999999999 0.064 AML other m 2020-10-10T22:01:59.53
IV.MF5.EHE. ML:2.0 0.00044366159999999997 0.5632 AML other m 2020-10-10T22:02:00.52
IV.MF5.EHN. ML:1.8 0.00029463105 0.1536 AML other m 2020-10-10T22:02:00.68
IV.FDMO.HHN. ML:1.6 0.00016897045 0.2944 AML other m 2020-10-10T22:02:00.15
IV.FDMO.HHE. ML:1.4 0.000116344575 0.2176 AML other m 2020-10-10T22:02:00.06
IV.GUMA.HHN. ML:2.3 0.0008380786 0.256 AML other m 2020-10-10T22:02:01.22
IV.GUMA.HNE. ML:2.4 0.00101024775 0.3456 AML other m 2020-10-10T22:02:01.22
IV.GUMA.HHE. ML:2.3 0.00080039835 0.3584 AML other m 2020-10-10T22:02:01.23
IV.CSP1.EHE. ML:1.8 0.0002063318 0.4736 AML other m 2020-10-10T22:02:01.18
IV.CSP1.EHN. ML:1.7 0.0001696424 0.1408 AML other m 2020-10-10T22:02:01.06
IV.CESI.HHE. ML:1.6 0.00015437155 0.1792 AML other m 2020-10-10T22:02:02.09
IV.CESI.HHN. ML:1.8 0.00023413985 0.1536 AML other m 2020-10-10T22:02:02.05
IV.ARRO.EHN. ML:1.7 0.0001408442 0.1664 AML other m 2020-10-10T22:02:04.22
IV.ARRO.EHE. ML:1.8 0.00021053545000000002 0.2432 AML other m 2020-10-10T22:02:04.18
IV.MNTT.EHE. ML:1.9 0.0002582257 0.2432 AML other m 2020-10-10T22:02:04.86
IV.MNTT.EHN. ML:2.1 0.00035270585 0.2176 AML other m 2020-10-10T22:02:05.46
IV.ASSB.HHN. ML:1.4 0.000058721925 0.32 AML other m 2020-10-10T22:02:07.26
IV.ASSB.HHE. ML:1.3 0.000043296955 0.2816 AML other m 2020-10-10T22:02:07.05
IV.CESX.HHN. ML:1.3 0.00004064805 1.2416 AML other m 2020-10-10T22:02:06.75
IV.CESX.HHE. ML:1.4 0.00005074371 1.6384 AML other m 2020-10-10T22:02:07.65
IV.ATCC.EHE. ML:1.2 0.000030181199999999998 0.896 AML other m 2020-10-10T22:02:11.03
IV.ATCC.EHN. ML:1.3 0.00003720173 0.5376 AML other m 2020-10-10T22:02:10.73
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