Earthquake with magnitude of ML 3.4 on date 30-10-2016 and time 12:21:51 (Italy) in region 4 km NW Accumoli (RI)

A magnitude ML 3.4 earthquake occured in region: 4 km NW Accumoli (RI), on

  • 30-10-2016 11:21:51 (UTC)
  • 30-10-2016 12:21:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7200, 13.2090 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.

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
Arquata del Tronto AP 9 1178 1845
Cittareale RI 12 482 2327
Amatrice RI 12 2657 4984
Norcia PG 12 4957 9941
Cascia PG 16 3217 13158
Montegallo AP 17 523 13681
Acquasanta Terme AP 17 2916 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
49 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
89 Km W of Chieti (51815 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.4 2016-10-30
11:21:51
42.7203 13.2087 10 2019-02-12
14:03:12
Bollettino Sismico Italiano INGV 43419891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-30 11:21:51 ± 0.04
Latitude 42.7203 ± 0.0027
Longitude 13.2087 ± 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 43419891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 304
Semi-minor axis of confidence ellipse (meter) 283
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 76
Number of defining phases 76
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 1.02163
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 45
Magnitude information

ML:3.4

Field Value
Value 3.4
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 43419891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-06-14 09:55:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2016-10-30T11:22:11.22 0.6 undecidable manual S 340 63.1923 50 0.48 41
IV.FSSB.HHZ. 2016-10-30T11:22:10.22 0.6 undecidable manual P 342 113.3976 50 -0.03 41
IV.PIEI.HHZ. 2016-10-30T11:22:10.18 1.0 undecidable manual P 329 105.6165 50 1.13 14
IV.ASSB.HHN. 2016-10-30T11:22:09.43 0.6 undecidable manual S 309 57.1983 50 0.28 43
IV.FIU1.HNZ. 2016-10-30T11:22:09.27 0.6 undecidable manual S 337 56.5989 50 0.28 43
IV.PIO1.HNZ. 2016-10-30T11:22:08.56 0.6 undecidable manual S 340 54.0015 50 0.28 44
IV.MNTP.HNZ. 2016-10-30T11:22:08.94 0.6 undecidable manual S 25 50.9157 50 1.49 26
IV.AOI.HHZ. 2016-10-30T11:22:08.45 0.3 undecidable manual P 19 97.4247 50 0.67 54
IV.SEF1.HNZ. 2016-10-30T11:22:07.91 0.6 undecidable manual S 336 51.8037 50 0.2 44
IV.MDAR.HNN. 2016-10-30T11:22:07.87 0.6 undecidable manual S 354 52.7028 50 -0.06 46
IV.PP3.HNZ. 2016-10-30T11:22:06.07 0.3 undecidable manual P 24 79.8645 50 0.99 48
IV.ARVD.HHZ. 2016-10-30T11:22:05.94 0.6 undecidable manual P 346 88.9443 50 -0.54 38
IV.CSP1.EHZ. 2016-10-30T11:22:04.69 0.6 undecidable manual S 360 41.2254 50 -0.19 45
IV.GUMA.HNN. 2016-10-30T11:22:04.87 0.3 undecidable manual S 15 39.3273 50 0.49 64
IV.EL6.EHZ. 2016-10-30T11:22:03.47 0.3 undecidable manual P 353 68.0763 50 0.2 65
IV.T1211.HNZ. 2016-10-30T11:22:03.60 0.6 undecidable manual S 234 35.5422 50 0.23 45
IV.TRE1.HNZ. 2016-10-30T11:22:03.42 0.3 undecidable manual P 7 66.0894 50 0.46 61
IV.ATCC.EHE. 2016-10-30T11:22:03.57 0.6 undecidable manual P 318 69.1752 50 0.13 44
IV.TRTR.HHE. 2016-10-30T11:22:02.82 0.3 undecidable manual P 80 58.1973 50 1.07 48
IV.T1247.HHZ. 2016-10-30T11:22:02.52 0.6 undecidable manual S 167 31.746 50 0.16 47
IV.TERO.HNZ. 2016-10-30T11:22:02.64 0.6 undecidable manual S 108 34.0437 50 -0.32 45
IV.SNTG.HHZ. 2016-10-30T11:22:02.38 0.3 undecidable manual P 340 63.1923 50 -0.13 66
XO.AM05.EHZ. 2016-10-30T11:22:01.82 0.6 undecidable manual S 22 30.8469 50 -0.29 45
IV.GAG1.HNZ. 2016-10-30T11:22:01.97 0.3 undecidable manual P 349 58.5969 50 0.17 66
IV.FEMA.HNZ. 2016-10-30T11:22:01.54 0.6 undecidable manual S 334 29.748 50 -0.28 45
IV.ASSB.HHN. 2016-10-30T11:22:01.51 0.6 undecidable manual P 309 57.1983 50 -0.08 45
IV.T1256.HHZ. 2016-10-30T11:22:01.89 0.6 undecidable manual S 3 31.746 50 -0.46 44
IV.FIU1.HNZ. 2016-10-30T11:22:01.53 0.3 undecidable manual P 337 56.5989 50 0.04 68
IV.T1215.HNZ. 2016-10-30T11:22:01.45 0.6 undecidable manual S 288 29.1486 50 -0.21 46
IV.RM33.HNZ. 2016-10-30T11:22:00.18 0.3 undecidable manual S 179 23.4543 50 0.04 72
IV.T1246.HHN. 2016-10-30T11:22:00.91 0.6 undecidable manual S 123 27.75 50 -0.37 45
IV.T1241.EHZ. 2016-10-30T11:22:00.02 0.6 undecidable manual S 50 23.5542 50 -0.15 47
IV.CAMP.HHE. 2016-10-30T11:22:00.57 0.6 undecidable manual S 141 26.2515 50 -0.31 46
IV.PIO1.HNZ. 2016-10-30T11:22:00.42 0.6 undecidable manual P 340 54.0015 50 -0.67 39
IV.SEF1.HNZ. 2016-10-30T11:22:00.47 0.1 undecidable manual P 336 51.8037 50 -0.29 87
IV.OFFI.HHE. 2016-10-30T11:22:00.40 0.3 undecidable manual P 58 45.5211 50 0.61 61
IV.MDAR.HNN. 2016-10-30T11:22:00.32 0.3 undecidable manual P 354 52.7028 50 -0.57 61
IV.MNTP.HNZ. 2016-10-30T11:22:00.87 0.3 undecidable manual P 25 50.9157 50 0.26 66
IV.CESX.HHE. 2016-10-30T11:22:00.36 0.3 undecidable manual P 256 52.2033 50 -0.46 63
IV.ARRO.EHZ. 2016-10-30T11:21:59.55 0.6 undecidable manual P 247 39.4272 50 0.71 39
IV.T1217.EHZ. 2016-10-30T11:21:59.65 0.3 undecidable manual S 268 22.6551 115 -0.25 69
IV.GIGS.HHN. 2016-10-30T11:21:59.16 0.3 undecidable manual P 135 42.0246 50 -0.09 69
IV.T1211.HNZ. 2016-10-30T11:21:58.24 0.6 undecidable manual P 234 35.5422 50 -0.02 48
IV.CSP1.EHZ. 2016-10-30T11:21:58.78 0.1 undecidable manual P 360 41.2254 50 -0.34 88
IV.GUMA.HNN. 2016-10-30T11:21:58.93 0.1 undecidable manual P 15 39.3273 50 0.09 93
IV.T1243.HHZ. 2016-10-30T11:21:58.39 0.3 undecidable manual S 98 19.7691 118 -0.61 63
IV.LNSS.HHZ. 2016-10-30T11:21:58.89 0.3 undecidable manual S 227 18.9699 119 0.13 72
IV.TERO.HNZ. 2016-10-30T11:21:57.66 0.1 undecidable manual P 108 34.0437 50 -0.36 89
IV.T1256.HHZ. 2016-10-30T11:21:57.24 0.1 undecidable manual P 3 31.746 50 -0.43 88
IV.T1215.HNZ. 2016-10-30T11:21:57.03 0.1 undecidable manual P 288 29.1486 50 -0.23 92
IV.T1247.HHZ. 2016-10-30T11:21:57.59 0.1 undecidable manual P 167 31.746 50 -0.08 94
IV.T1212.HNZ. 2016-10-30T11:21:57.02 0.3 undecidable manual S 285 13.7751 127 -0.24 71
XO.AM05.EHZ. 2016-10-30T11:21:57.29 0.1 positive manual P 22 30.8469 50 -0.23 92
IV.T1246.HHN. 2016-10-30T11:21:57.02 0.3 undecidable manual P 123 27.75 50 -0.03 72
IV.FEMA.HNZ. 2016-10-30T11:21:57.14 0.3 undecidable manual P 334 29.748 50 -0.22 69
IV.T1245.HNZ. 2016-10-30T11:21:57.42 0.6 undecidable manual S 354 15.1737 124 -0.23 47
IV.T1204.EHZ. 2016-10-30T11:21:56.34 0.3 undecidable manual S 119 10.0788 136 0.05 74
IV.T1217.EHZ. 2016-10-30T11:21:56.03 0.1 undecidable manual P 268 22.6551 115 -0.22 93
IV.T1201.HNN. 2016-10-30T11:21:56.23 0.6 undecidable manual S 154 7.7811 143 0.46 45
IV.RM33.HNZ. 2016-10-30T11:21:56.42 0.1 undecidable manual P 179 23.4543 50 0.03 97
IV.T1218.EHZ. 2016-10-30T11:21:56.37 0.3 undecidable manual S 234 9.4794 138 0.23 71
IV.T1241.EHZ. 2016-10-30T11:21:56.45 0.1 positive manual P 50 23.5542 50 0.04 97
IV.CAMP.HHE. 2016-10-30T11:21:56.59 0.1 undecidable manual P 141 26.2515 50 -0.22 93
IV.LNSS.HHZ. 2016-10-30T11:21:55.81 0.3 undecidable manual P 227 18.9699 119 0.22 70
IV.T1213.HNZ. 2016-10-30T11:21:55.57 0.3 undecidable manual S 274 6.7932 147 0 75
IV.T1244.HNZ. 2016-10-30T11:21:55.87 0.3 undecidable manual S 61 8.2806 141 -0.01 75
IV.T1243.HHZ. 2016-10-30T11:21:55.46 0.1 undecidable manual P 98 19.7691 118 -0.27 93
IV.T1218.EHZ. 2016-10-30T11:21:54.26 0.1 undecidable manual P 234 9.4794 138 0.18 96
IV.T1245.HNZ. 2016-10-30T11:21:54.86 0.1 undecidable manual P 354 15.1737 124 -0.09 97
IV.T1204.EHZ. 2016-10-30T11:21:54.27 0.1 undecidable manual P 119 10.0788 136 0.1 98
IV.T1201.HNN. 2016-10-30T11:21:54.22 0.1 undecidable manual P 154 7.7811 143 0.35 93
IV.T1244.HNZ. 2016-10-30T11:21:54.01 0.1 undecidable manual P 61 8.2806 141 0.08 98
IV.T1212.HNZ. 2016-10-30T11:21:54.73 0.1 undecidable manual P 285 13.7751 127 0.01 99
IV.T1214.HNZ. 2016-10-30T11:21:54.96 0.3 undecidable manual S 0 4.2957 157 -0.21 72
IV.T1214.HNZ. 2016-10-30T11:21:53.55 0.1 undecidable manual P 0 4.2957 157 0.03 100
IV.T1213.HNZ. 2016-10-30T11:21:53.91 0.1 undecidable manual P 274 6.7932 147 0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1204.EHN. ML:3.2 0.01804562 0.2368 AML other m 2016-10-30T11:21:57.24
IV.T1204.EHE. ML:3.5 0.03802701000000001 0.3392 AML other m 2016-10-30T11:21:57.79
IV.LNSS.HHN. ML:3.7 0.040115385 0.3392 AML other m 2016-10-30T11:21:59.00
IV.LNSS.HHE. ML:3.3 0.0141416 0.3008 AML other m 2016-10-30T11:21:59.22
IV.T1217.HNE. ML:3.4 0.0151727105 0.288 AML other m 2016-10-30T11:21:59.95
IV.T1217.EHE. ML:3.4 0.0156337375 0.288 AML other m 2016-10-30T11:21:59.95
IV.T1217.EHN. ML:3.7 0.030048425 0.2752 AML other m 2016-10-30T11:21:59.82
IV.T1217.HNN. ML:3.7 0.030350465 0.256 AML other m 2016-10-30T11:21:59.95
IV.RM33.HNN. ML:3.4 0.01555272 0.4032 AML other m 2016-10-30T11:22:00.39
IV.RM33.EHN. ML:3.4 0.01548697 0.384 AML other m 2016-10-30T11:22:00.39
IV.RM33.EHE. ML:3.2 0.010643080000000001 0.1408 AML other m 2016-10-30T11:22:00.69
IV.RM33.HNE. ML:3.2 0.011177855 0.16 AML other m 2016-10-30T11:22:00.68
IV.T1215.HNN. ML:3.0 0.0053221405 0.1152 AML other m 2016-10-30T11:22:01.51
IV.T1215.EHN. ML:3.0 0.0052985535 0.096 AML other m 2016-10-30T11:22:01.51
IV.T1215.HNE. ML:3.1 0.0061047445 0.1408 AML other m 2016-10-30T11:22:01.60
IV.T1215.EHE. ML:3.1 0.0060581079999999995 0.096 AML other m 2016-10-30T11:22:01.61
IV.FEMA.HNN. ML:3.6 0.017917297999999998 0.096 AML other m 2016-10-30T11:22:01.65
IV.FEMA.HNE. ML:3.8 0.028892220000000003 0.1984 AML other m 2016-10-30T11:22:02.01
XO.AM05.EHN. ML:2.6 0.0019172294999999998 0.1024 AML other m 2016-10-30T11:22:02.44
XO.AM05.HNN. ML:3.1 0.006142676 0.1152 AML other m 2016-10-30T11:22:02.52
IV.T1241.HNN. ML:3.2 0.0114501065 0.448 AML other m 2016-10-30T11:22:03.19
IV.T1241.EHN. ML:3.3 0.0131263925 0.4352 AML other m 2016-10-30T11:22:03.19
IV.T1241.HNE. ML:3.4 0.017313650000000003 0.4096 AML other m 2016-10-30T11:22:03.21
IV.T1241.EHE. ML:3.4 0.01608101 0.4224 AML other m 2016-10-30T11:22:03.22
IV.TERO.HHE. ML:3.1 0.0058056704999999995 0.1024 AML other m 2016-10-30T11:22:02.97
IV.TERO.HNE. ML:3.1 0.0049948072 0.1216 AML other m 2016-10-30T11:22:02.97
XO.AM05.EHE. ML:3.6 0.0207296865 0.2368 AML other m 2016-10-30T11:22:03.54
XO.AM05.HNE. ML:3.0 0.005310669 0.1216 AML other m 2016-10-30T11:22:03.77
IV.TERO.HHN. ML:3.5 0.012373974999999999 0.576 AML other m 2016-10-30T11:22:05.43
IV.TERO.HNN. ML:3.4 0.011875614999999999 0.5568 AML other m 2016-10-30T11:22:05.44
IV.CSP1.EHE. ML:3.8 0.0199580535 0.1984 AML other m 2016-10-30T11:22:05.73
IV.CSP1.EHN. ML:3.7 0.016796734999999997 0.4224 AML other m 2016-10-30T11:22:06.66
IV.SEF1.HNN. ML:3.7 0.012202145 0.2176 AML other m 2016-10-30T11:22:09.74
IV.SEF1.HNE. ML:3.8 0.01529595 0.224 AML other m 2016-10-30T11:22:10.00
IV.MNTP.HNN. ML:3.7 0.014097077000000001 0.1792 AML other m 2016-10-30T11:22:10.24
IV.MNTP.HNE. ML:3.9 0.020571669999999997 0.2112 AML other m 2016-10-30T11:22:10.92
IV.GAG1.HNE. ML:3.7 0.01105563 0.2112 AML other m 2016-10-30T11:22:12.51
IV.SNTG.HHE. ML:3.3 0.0034501189999999998 0.2816 AML other m 2016-10-30T11:22:12.59
IV.GAG1.HNN. ML:3.7 0.011103954999999999 0.3584 AML other m 2016-10-30T11:22:12.70
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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