Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 06-01-2020 and time 17:09:30 (Italy) in region 3 km NE Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 3 km NE Accumoli (RI), on

  • 06-01-2020 16:09:30 (UTC)
  • 06-01-2020 17:09:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7160, 13.2760 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.

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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
Accumoli RI 3 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 10 2657 4502
Acquasanta Terme AP 13 2916 7418
Cittareale RI 14 482 7900
Montegallo AP 15 523 8423
Norcia PG 17 4957 13380
Valle Castellana TE 18 977 14357
Campotosto AQ 19 542 14899

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km W of Teramo (54892 inhabitants)
42 Km N of L'Aquila (69753 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
54 Km E of Terni (111501 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
84 Km W of Chieti (51815 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 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 2020-01-06
16:09:30		 42.7163 13.2757 12 2020-07-18
21:08:23		 Bollettino Sismico Italiano INGV 77008851
Reviewed
Rev100 		ML 1.7 2020-01-06
16:09:30		 42.7137 13.2722 11 2020-01-06
16:18:19		 Sala Sismica INGV-Roma 75337321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-06 16:09:30 ± 0.05
Latitude 42.7163 ± 0.0027
Longitude 13.2757 ± 0.0049
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 77008851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 309
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
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) 74
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62593
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 77008851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-03 14:43:36

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 75337321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-06 16:18:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2020-01-06T16:10:02.56 3.0 undecidable manual S -3.76 0
IV.CESI.HHZ. 2020-01-06T16:09:45.17 0.3 undecidable manual S 317 44.0226 91 0.09 69
IV.GIGS.HHZ. 2020-01-06T16:09:43.27 0.3 undecidable manual S 140 37.9287 91 -0.21 69
IV.EL6.EHZ. 2020-01-06T16:09:43.13 0.3 undecidable manual P 348 69.4749 91 0.12 66
IV.GAVE.EHZ. 2020-01-06T16:09:41.79 0.3 undecidable manual S 265 31.2465 92 0.11 71
IV.CAMP.HHE. 2020-01-06T16:09:39.24 0.6 undecidable manual S 151 22.755 93 -0.19 47
IV.MC2.EHZ. 2020-01-06T16:09:39.39 0.3 undecidable manual S 342 22.755 93 -0.03 74
IV.MNTT.EHZ. 2020-01-06T16:09:39.82 0.6 undecidable manual P 34 46.3203 91 0.38 43
IV.LNSS.HHZ. 2020-01-06T16:09:39.57 0.3 undecidable manual S 237 22.9548 93 0.09 73
IV.RM33.EHZ. 2020-01-06T16:09:39.65 0.3 undecidable manual S 192 23.5542 93 0.02 74
IV.OFFI.HHE. 2020-01-06T16:09:39.14 0.3 undecidable manual P 54 41.2254 91 0.48 64
IV.GUMA.HHZ. 2020-01-06T16:09:38.44 0.3 undecidable manual P 7 38.7279 91 0.17 69
IV.FDMO.HHZ. 2020-01-06T16:09:38.02 0.6 undecidable manual P 337 38.628 91 -0.25 46
IV.CSP1.EHZ. 2020-01-06T16:09:38.66 0.3 undecidable manual P 352 42.0246 91 -0.12 70
IV.CESI.HHZ. 2020-01-06T16:09:38.86 0.3 undecidable manual P 317 44.0226 91 -0.22 68
IV.MMO1.EHZ. 2020-01-06T16:09:38.64 0.3 undecidable manual S 12 20.7681 94 -0.24 71
IV.GIGS.HHZ. 2020-01-06T16:09:37.96 0.3 undecidable manual P 140 37.9287 91 -0.2 69
IV.NRCA.HHZ. 2020-01-06T16:09:37.95 0.6 undecidable manual S 315 18.4704 96 -0.34 46
IV.MF5.EHZ. 2020-01-06T16:09:37.82 0.1 positive manual P 26 33.6441 92 0.33 90
IV.MTRA.HNZ. 2020-01-06T16:09:36.13 0.1 undecidable manual S 66 10.7781 120 -0.2 96
IV.GAVE.EHZ. 2020-01-06T16:09:36.98 0.3 positive manual P 265 31.2465 92 -0.14 71
IV.SMA1.EHZ. 2020-01-06T16:09:36.37 0.6 undecidable manual S 153 10.6782 121 0.07 50
IV.T1299.HNN. 2020-01-06T16:09:36.27 0.6 undecidable manual S 177 9.0798 128 0.31 48
IV.RM33.EHZ. 2020-01-06T16:09:35.90 0.1 undecidable manual P 192 23.5542 93 -0.04 97
IV.NRCA.HHZ. 2020-01-06T16:09:35.00 0.1 undecidable manual P 315 18.4704 96 -0.16 96
IV.MMO1.EHZ. 2020-01-06T16:09:35.39 0.1 negative manual P 12 20.7681 94 -0.11 97
IV.CAMP.HHE. 2020-01-06T16:09:35.65 0.1 undecidable manual P 151 22.755 93 -0.17 95
IV.MC2.EHZ. 2020-01-06T16:09:35.75 0.3 undecidable manual P 342 22.755 93 -0.06 73
IV.LNSS.HHZ. 2020-01-06T16:09:35.81 0.1 undecidable manual P 237 22.9548 93 -0.04 98
IV.T1299.HNN. 2020-01-06T16:09:34.11 0.1 undecidable manual P 177 9.0798 128 0.3 95
IV.MTRA.HNZ. 2020-01-06T16:09:34.05 0.1 undecidable manual P 66 10.7781 120 0.02 100
IV.SMA1.EHZ. 2020-01-06T16:09:34.23 0.3 undecidable manual P 153 10.6782 121 0.22 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNN. ML:1.7 0.000647 0.84 AML other m 2020-01-06T16:09:36.30
IV.MTRA.EHN. ML:1.7 0.0005695 0.84 AML other m 2020-01-06T16:09:36.72
IV.SMA1.EHN. ML:1.6 0.00047200000000000003 0.32 AML other m 2020-01-06T16:09:36.43
IV.SMA1.EHE. ML:1.6 0.0004165 0.4 AML other m 2020-01-06T16:09:36.53
IV.MTRA.HNE. ML:2.0 0.0011085000000000001 0.94 AML other m 2020-01-06T16:09:36.25
IV.MTRA.EHE. ML:2.0 0.001143 0.96 AML other m 2020-01-06T16:09:36.25
IV.RM33.EHN. ML:1.3 0.0001265 1.68 AML other m 2020-01-06T16:09:39.13
IV.LNSS.HHN. ML:1.5 0.0001945 0.32 AML other m 2020-01-06T16:09:39.82
IV.LNSS.HHE. ML:1.5 0.0002055 1.88 AML other m 2020-01-06T16:09:40.00
IV.RM33.EHE. ML:1.4 0.000133 0.46 AML other m 2020-01-06T16:09:41.48
IV.GAVE.EHN. ML:1.5 0.000154 1.32 AML other m 2020-01-06T16:09:42.25
IV.GAVE.EHE. ML:1.4 0.0001275 1.08 AML other m 2020-01-06T16:09:42.40
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