Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 30-10-2016 and time 21:50:48 (Italy) in region 4 km W Accumoli (RI)

A magnitude ML 2.2 earthquake occured in region: 4 km W Accumoli (RI), on

  • 30-10-2016 20:50:48 (UTC)
  • 30-10-2016 21:50:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6800, 13.2010 at 12 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
Accumoli RI 4 667 667
Cittareale RI 8 482 1149
Amatrice RI 9 2657 3806
Arquata del Tronto AP 13 1178 4984
Norcia PG 15 4957 9941
Cascia PG 16 3217 13158
Montereale AQ 18 2581 15739
Posta RI 19 694 16433
Borbona RI 19 617 17050
Campotosto AQ 19 542 17592
Capitignano AQ 20 665 18257
Acquasanta Terme AP 20 2916 21173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NW of L'Aquila (69753 inhabitants)
41 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
86 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
94 Km E of Viterbo (67173 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 2.2 2016-10-30
20:50:48		 42.6797 13.2008 12 2019-02-12
14:03:22		 Bollettino Sismico Italiano INGV 47023361
Reviewed
Rev100 		ML 2.6 2016-10-30
20:50:48		 42.6873 13.2027 12 2016-10-30
20:57:23		 Sala Sismica INGV-Roma 31137251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-30 20:50:48 ± 0.05
Latitude 42.6797 ± 0.0036
Longitude 13.2008 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 47023361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 26
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 52
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) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 0.96227
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 31137251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-30 20:57:21

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 47023361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-06-22 10:34:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACS.HHZ. 2016-10-30T20:51:07.15 0.3 undecidable manual P 281 106.8153 91 0.63 55
IV.FRON.EHZ. 2016-10-30T20:51:06.25 0.6 undecidable manual P 338 100.6215 91 0.69 36
IV.MGAB.HHZ. 2016-10-30T20:51:05.06 0.6 undecidable manual P 287 92.3409 91 0.78 35
IV.PP3.EHZ. 2016-10-30T20:51:04.03 0.3 undecidable manual P 23 84.249 91 1 49
IV.CERT.HHZ. 2016-10-30T20:51:02.59 0.6 undecidable manual P 193 83.0502 91 -0.25 42
IV.SRES.HHZ. 2016-10-30T20:51:01.65 0.6 undecidable manual P 229 74.8695 91 0.05 45
IV.T0110.HHZ. 2016-10-30T20:51:00.90 0.6 undecidable manual P 136 68.6757 91 0.27 43
IV.TRTR.HHZ. 2016-10-30T20:51:00.35 0.3 undecidable manual P 76 59.7957 91 1.08 49
IV.ASSB.HHZ. 2016-10-30T20:50:59.30 0.6 undecidable manual P 313 59.6958 91 0.04 46
IV.TERO.HHZ. 2016-10-30T20:50:59.50 0.6 undecidable manual S 101 33.4443 92 -0.53 43
IV.T1211.EHZ. 2016-10-30T20:50:59.76 0.6 undecidable manual S 240 32.6451 92 -0.04 48
IV.VCEL.EHZ. 2016-10-30T20:50:59.82 0.6 undecidable manual P 121 61.0944 91 0.35 43
IV.T1215.HNZ. 2016-10-30T20:50:58.77 0.6 undecidable manual S 297 30.2475 93 -0.4 45
IV.T1241.EHZ. 2016-10-30T20:50:58.00 0.6 undecidable manual S 44 27.1506 93 -0.34 46
IV.OFFI.HHZ. 2016-10-30T20:50:58.11 0.3 undecidable manual P 54 48.5181 91 0.57 63
IV.T1247.HHZ. 2016-10-30T20:50:58.68 0.6 undecidable manual S 163 27.5502 93 0.22 47
IV.CESX.HHZ. 2016-10-30T20:50:57.60 0.3 undecidable manual P 261 50.7159 91 -0.27 67
IV.CAMP.HHZ. 2016-10-30T20:50:57.26 0.6 undecidable manual S 133 23.3544 95 -0.06 49
IV.MMO1.EHZ. 2016-10-30T20:50:57.84 0.6 undecidable manual S 23 26.4513 94 -0.31 46
IV.FIAM.HHZ. 2016-10-30T20:50:57.01 0.3 undecidable manual P 189 46.2204 91 -0.16 69
IV.T1246.HHN. 2016-10-30T20:50:57.75 0.6 undecidable manual S 114 26.1516 94 -0.32 46
MN.AQU.HHZ. 2016-10-30T20:50:56.71 0.6 undecidable manual P 155 39.8268 92 0.52 43
IV.T1243.HNZ. 2016-10-30T20:50:56.28 0.6 undecidable manual S 85 20.2686 97 -0.23 47
IV.RM33.EHZ. 2016-10-30T20:50:56.24 0.6 undecidable manual S 177 18.9699 98 0.07 49
IV.GUMA.HHZ. 2016-10-30T20:50:56.92 0.3 undecidable manual P 14 43.8228 92 0.11 70
IV.T1217.HNZ. 2016-10-30T20:50:56.72 0.6 undecidable manual S 279 22.2555 95 -0.32 46
IV.LNSS.HHZ. 2016-10-30T20:50:55.38 0.1 undecidable manual S 237 15.6732 104 0.09 98
XO.AM05.EHZ. 2016-10-30T20:50:55.27 0.3 undecidable manual P 20 35.2425 92 -0.21 69
IV.GIGS.HHZ. 2016-10-30T20:50:55.92 0.1 undecidable manual P 129 39.4272 92 -0.21 92
IV.ARRO.EHZ. 2016-10-30T20:50:55.64 0.1 undecidable manual P 253 37.2294 92 -0.15 94
IV.T1241.EHZ. 2016-10-30T20:50:54.18 0.1 positive manual P 44 27.1506 93 -0.05 97
IV.T1211.EHZ. 2016-10-30T20:50:54.95 0.1 undecidable manual P 240 32.6451 92 -0.12 95
IV.T1247.HHZ. 2016-10-30T20:50:54.24 0.3 undecidable manual P 163 27.5502 93 -0.06 73
IV.T1244.EHZ. 2016-10-30T20:50:54.20 0.6 undecidable manual S 43 11.6772 119 -0.1 50
IV.T1215.HNZ. 2016-10-30T20:50:54.47 0.3 undecidable manual P 297 30.2475 93 -0.25 69
IV.TERO.HHZ. 2016-10-30T20:50:54.85 0.1 undecidable manual P 101 33.4443 92 -0.36 90
IV.SMA1.EHZ. 2016-10-30T20:50:54.38 0.6 undecidable manual S 116 12.2766 116 -0.06 50
IV.T1246.HHN. 2016-10-30T20:50:53.91 0.1 undecidable manual P 114 26.1516 94 -0.17 95
IV.RM33.EHZ. 2016-10-30T20:50:53.02 0.1 positive manual P 177 18.9699 98 0.04 99
IV.T1299.HNN. 2016-10-30T20:50:53.61 0.6 undecidable manual S 127 8.3805 133 0.02 50
IV.T1217.HNZ. 2016-10-30T20:50:53.38 0.1 negative manual P 279 22.2555 95 -0.11 97
IV.CAMP.HHZ. 2016-10-30T20:50:53.59 0.3 undecidable manual P 133 23.3544 95 -0.06 73
IV.T1204.EHZ. 2016-10-30T20:50:53.64 0.6 undecidable manual S 92 9.4794 128 -0.17 49
IV.MMO1.EHZ. 2016-10-30T20:50:53.79 0.3 undecidable manual P 23 26.4513 94 -0.34 68
IV.T1201.HNN. 2016-10-30T20:50:53.11 0.6 undecidable manual S 121 4.7952 152 0.1 50
IV.SMA1.EHZ. 2016-10-30T20:50:52.10 0.1 positive manual P 116 12.2766 116 0.11 99
IV.LNSS.HHZ. 2016-10-30T20:50:52.56 0.1 undecidable manual P 237 15.6732 104 0.08 99
IV.T1243.HNZ. 2016-10-30T20:50:52.93 0.1 undecidable manual P 85 20.2686 97 -0.25 94
IV.T1204.EHZ. 2016-10-30T20:50:51.69 0.1 undecidable manual P 92 9.4794 128 0.06 100
IV.T1201.HNN. 2016-10-30T20:50:51.32 0.1 undecidable manual P 121 4.7952 152 0.16 99
IV.T1299.HNN. 2016-10-30T20:50:51.62 0.1 undecidable manual P 127 8.3805 133 0.12 99
IV.T1244.EHZ. 2016-10-30T20:50:51.85 0.1 undecidable manual P 43 11.6772 119 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XO.AM05.HNE. ML:1.9 0.00031881335 0.0896 AML other m 2016-10-30T20:51:00.85
XO.AM05.EHE. ML:2.5 0.0012949009999999998 0.1024 AML other m 2016-10-30T20:51:02.43
XO.AM05.HNN. ML:2.0 0.00037418205000000005 0.1024 AML other m 2016-10-30T20:51:01.95
XO.AM05.EHN. ML:1.5 0.00013015211 0.0768 AML other m 2016-10-30T20:51:01.93
MN.AQU.HHE. ML:1.7 0.0001846781 0.32 AML other m 2016-10-30T20:51:03.30
MN.AQU.HLN. ML:1.8 0.00020367195 0.2816 AML other m 2016-10-30T20:51:02.82
MN.AQU.HHN. ML:1.7 0.00018061495 0.256 AML other m 2016-10-30T20:51:02.94
MN.AQU.HLE. ML:1.8 0.000200785525 0.32 AML other m 2016-10-30T20:51:03.30
IV.ARRO.EHN. ML:2.1 0.0005141632000000001 0.1664 AML other m 2016-10-30T20:51:02.31
IV.ARRO.EHE. ML:2.1 0.00043192074999999996 0.2176 AML other m 2016-10-30T20:51:02.84
IV.CAMP.HHE. ML:1.6 0.0002291549 0.2176 AML other m 2016-10-30T20:50:57.84
IV.CAMP.HHN. ML:1.7 0.00029810979999999996 0.576 AML other m 2016-10-30T20:51:01.54
IV.CERT.HHN. ML:1.9 0.000104393795 0.64 AML other m 2016-10-30T20:51:17.18
IV.CERT.HHE. ML:2.1 0.00017007585 0.4736 AML other m 2016-10-30T20:51:21.24
IV.CESX.HHN. ML:2.0 0.00025374995 0.2176 AML other m 2016-10-30T20:51:09.25
IV.CESX.HHE. ML:2.0 0.00026689635 0.3072 AML other m 2016-10-30T20:51:06.25
IV.FIAM.HHN. ML:2.1 0.00033016670000000003 0.6016 AML other m 2016-10-30T20:51:06.83
IV.FIAM.HHE. ML:1.9 0.0002300044 0.2816 AML other m 2016-10-30T20:51:06.92
IV.GUMA.HHE. ML:2.7 0.0016306945000000002 0.4608 AML other m 2016-10-30T20:51:03.71
IV.GUMA.HHN. ML:2.7 0.0014711065 0.3328 AML other m 2016-10-30T20:51:04.47
IV.GUMA.HNN. ML:2.6 0.001307379 0.3712 AML other m 2016-10-30T20:51:03.69
IV.GUMA.HNE. ML:2.6 0.0012726763 0.3584 AML other m 2016-10-30T20:51:04.44
IV.OFFI.HHE. ML:2.5 0.00085617155 0.5248 AML other m 2016-10-30T20:51:08.88
IV.OFFI.HHN. ML:2.3 0.0005611701499999999 0.2048 AML other m 2016-10-30T20:51:08.45
IV.PP3.EHN. ML:2.6 0.0005517957 0.384 AML other m 2016-10-30T20:51:17.00
IV.RM33.HNN. ML:2.5 0.0021073255 0.1536 AML other m 2016-10-30T20:50:56.41
IV.RM33.HNE. ML:2.6 0.0027095484999999997 0.2816 AML other m 2016-10-30T20:50:57.09
IV.RM33.EHE. ML:2.5 0.0025841589999999995 0.2816 AML other m 2016-10-30T20:50:57.09
IV.RM33.EHN. ML:2.4 0.0020798915 0.1664 AML other m 2016-10-30T20:50:56.42
IV.SMA1.EHE. ML:2.6 0.0036843885000000004 0.256 AML other m 2016-10-30T20:50:54.00
IV.SMA1.EHN. ML:2.6 0.003860463 0.384 AML other m 2016-10-30T20:50:54.94
IV.SRES.HHE. ML:1.6 0.00005983198 0.2944 AML other m 2016-10-30T20:51:18.59
IV.SRES.HHN. ML:1.6 0.000053050545 0.32 AML other m 2016-10-30T20:51:14.62
IV.T0110.HHN. ML:1.9 0.00014188373999999998 0.4096 AML other m 2016-10-30T20:51:17.13
IV.T1211.HNE. ML:2.2 0.00074647445 0.128 AML other m 2016-10-30T20:50:59.86
IV.T1211.HNN. ML:2.4 0.001172435 0.4736 AML other m 2016-10-30T20:51:00.35
IV.T1211.EHN. ML:2.4 0.0011657982 0.4736 AML other m 2016-10-30T20:51:00.59
IV.T1211.EHE. ML:2.2 0.0007426653000000001 0.1152 AML other m 2016-10-30T20:50:59.92
IV.T1215.HNN. ML:2.1 0.0005783390500000001 0.1664 AML other m 2016-10-30T20:50:58.93
IV.T1215.EHN. ML:2.1 0.0006187940000000001 0.1664 AML other m 2016-10-30T20:50:58.85
IV.T1215.EHE. ML:2.0 0.0004889382 0.0768 AML other m 2016-10-30T20:50:59.61
IV.T1215.HNE. ML:2.0 0.00048006244999999995 0.0896 AML other m 2016-10-30T20:50:59.51
IV.T1217.HNN. ML:2.8 0.0037030965 0.2816 AML other m 2016-10-30T20:50:57.04
IV.T1217.HNE. ML:2.6 0.0022989994999999997 0.0768 AML other m 2016-10-30T20:50:56.93
IV.T1217.EHN. ML:2.8 0.0037844385000000004 0.2816 AML other m 2016-10-30T20:50:57.04
IV.T1217.EHE. ML:2.5 0.0022032526999999995 0.0768 AML other m 2016-10-30T20:50:56.89
IV.T1241.EHN. ML:1.8 0.00034902500000000004 0.2816 AML other m 2016-10-30T20:51:02.28
IV.T1241.EHE. ML:2.2 0.0007535644999999999 0.1536 AML other m 2016-10-30T20:50:58.65
IV.T1247.HHE. ML:2.3 0.0010188334000000002 0.1792 AML other m 2016-10-30T20:51:01.54
IV.T1247.HHN. ML:2.3 0.0009682351500000001 0.4096 AML other m 2016-10-30T20:51:03.16
IV.TERO.HNN. ML:2.2 0.00070430442 0.1792 AML other m 2016-10-30T20:51:00.35
IV.TERO.HNE. ML:2.1 0.0005520757000000001 0.1024 AML other m 2016-10-30T20:51:00.62
IV.TERO.HHE. ML:2.2 0.0006306807 0.128 AML other m 2016-10-30T20:51:00.56
IV.TERO.HHN. ML:2.3 0.0007619025 0.1792 AML other m 2016-10-30T20:51:00.35
IV.VCEL.EHN. ML:2.0 0.00019069330000000002 0.2176 AML other m 2016-10-30T20:51:13.15
IV.VCEL.EHE. ML:2.0 0.00022401654999999998 0.3712 AML other m 2016-10-30T20:51:09.66
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
Waveforms Seismic signals in miniseed + resp format Download