Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 06-03-2018 and time 04:49:23 (Italy) in region 4 km NE Accumoli (RI)

A magnitude ML 2.0 earthquake occured in region: 4 km NE Accumoli (RI), on

  • 06-03-2018 03:49:23 (UTC)
  • 06-03-2018 04:49:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7280, 13.2690 at 12 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 4 667 667
Arquata del Tronto AP 6 1178 1845
Amatrice RI 11 2657 4502
Acquasanta Terme AP 13 2916 7418
Montegallo AP 14 523 7941
Cittareale RI 15 482 8423
Norcia PG 16 4957 13380
Valle Castellana TE 19 977 14357
Montemonaco AP 20 604 14961

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Teramo (54892 inhabitants)
43 Km N of L'Aquila (69753 inhabitants)
53 Km E of Foligno (57155 inhabitants)
54 Km E of Terni (111501 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
83 Km W of Pescara (121014 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
85 Km NW of Chieti (51815 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 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
Reviewed
Rev100 		ML 2.0 2018-03-06
03:49:23		 42.7282 13.2687 12 2018-03-06
03:54:58		 Sala Sismica INGV-Roma 54354901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-06 03:49:23 ± 0.06
Latitude 42.7282 ± 0.0027
Longitude 13.2687 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 54354901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 419
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38401
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 54354901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-03-06 03:54:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2018-03-06T03:49:44.99 3.0 undecidable manual S -0.1 0
IV.FIAM.HHZ. 2018-03-06T03:49:32.33 3.0 undecidable manual P -0.52 0
IV.CESI.HHZ. 2018-03-06T03:49:31.06 0.1 negative manual P 316 42.624 92 -0.1 94
IV.MC2.EHZ. 2018-03-06T03:49:31.41 0.6 undecidable manual S 342 21.3675 99 0.06 49
IV.ARRO.EHZ. 2018-03-06T03:49:31.70 3.0 negative manual P 0.17 0
IV.LNSS.HHZ. 2018-03-06T03:49:31.89 0.6 undecidable manual S 233 23.2545 97 0.04 50
IV.CSP1.EHZ. 2018-03-06T03:49:30.56 3.0 positive manual P -0.27 0
IV.MMO1.EHZ. 2018-03-06T03:49:30.64 0.6 undecidable manual S 14 19.5693 100 -0.24 48
IV.PF6.EHZ. 2018-03-06T03:49:30.87 3.0 undecidable manual P -0.81 0
IV.GIGS.HHZ. 2018-03-06T03:49:30.34 0.6 positive manual P 141 39.3273 93 -0.32 46
IV.GUMA.HHZ. 2018-03-06T03:49:30.63 0.3 negative manual P 8 37.5291 93 0.26 69
IV.NRCA.HNZ. 2018-03-06T03:49:29.93 0.6 undecidable manual S 313 17.1717 105 -0.32 47
IV.T1247.HHZ. 2018-03-06T03:49:29.46 1.0 negative manual P 176 31.8459 94 -0.05 24
OB.GAVE.EHZ. 2018-03-06T03:49:29.40 0.6 negative manual P 263 30.747 94 0.06 49
IV.MF5.EHZ. 2018-03-06T03:49:29.92 0.6 negative manual P 28 32.745 94 0.28 46
IV.TERO.HHZ. 2018-03-06T03:49:28.81 3.0 undecidable manual P -0.28 0
IV.LNSS.HHZ. 2018-03-06T03:49:28.27 0.1 positive manual P 233 23.2545 97 0.09 98
IV.RM33.EHZ. 2018-03-06T03:49:28.40 0.1 positive manual P 190 24.753 96 -0.01 99
IV.T1299.EHZ. 2018-03-06T03:49:28.83 0.6 undecidable manual S 174 10.4784 126 0.19 49
IV.SMA1.EHZ. 2018-03-06T03:49:28.55 0.6 undecidable manual S 153 12.0768 120 -0.46 46
IV.T1214.EHZ. 2018-03-06T03:49:27.89 0.6 undecidable manual S 305 5.994 147 0.08 51
IV.NRCA.HNZ. 2018-03-06T03:49:27.22 0.1 negative manual P 313 17.1717 105 -0.04 100
IV.MMO1.EHZ. 2018-03-06T03:49:27.52 0.1 negative manual P 14 19.5693 100 -0.1 99
IV.MC2.EHZ. 2018-03-06T03:49:27.90 0.1 negative manual P 342 21.3675 99 0.01 100
IV.SMA1.EHZ. 2018-03-06T03:49:26.62 0.1 positive manual P 153 12.0768 120 0.08 100
IV.T1214.EHZ. 2018-03-06T03:49:26.03 1.0 undecidable manual P 305 5.994 147 0.18 25
IV.T1299.EHZ. 2018-03-06T03:49:26.57 0.6 undecidable manual P 174 10.4784 126 0.24 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1214.HNN. ML:1.8 0.00091 0.4 AML other m 2018-03-06T03:49:28.06
IV.T1214.EHN. ML:1.8 0.000837 0.4 AML other m 2018-03-06T03:49:28.06
IV.T1214.HNE. ML:1.8 0.000801 1.06 AML other m 2018-03-06T03:49:28.77
IV.T1214.EHE. ML:1.7 0.0006525000000000001 1.06 AML other m 2018-03-06T03:49:28.77
IV.T1299.EHE. ML:1.8 0.00076 1.36 AML other m 2018-03-06T03:49:28.96
IV.T1299.EHN. ML:2.0 0.0010750000000000002 1.9 AML other m 2018-03-06T03:49:29.96
IV.SMA1.EHE. ML:2.1 0.0013650000000000001 0.28 AML other m 2018-03-06T03:49:29.21
IV.SMA1.EHN. ML:2.0 0.00113 0.16 AML other m 2018-03-06T03:49:29.04
IV.NRCA.HHE. ML:2.2 0.0012150000000000002 0.18 AML other m 2018-03-06T03:49:30.24
IV.NRCA.HNE. ML:2.2 0.0011600000000000002 0.16 AML other m 2018-03-06T03:49:30.24
IV.NRCA.HNN. ML:2.1 0.000948 0.14 AML other m 2018-03-06T03:49:30.29
IV.NRCA.HHN. ML:2.1 0.0009155 0.12 AML other m 2018-03-06T03:49:30.29
IV.LNSS.HHE. ML:2.0 0.000686 0.26 AML other m 2018-03-06T03:49:32.30
IV.TERO.HHE. ML:1.9 0.000345 0.1 AML other m 2018-03-06T03:49:33.23
IV.LNSS.HHN. ML:1.8 0.00038449999999999997 0.32 AML other m 2018-03-06T03:49:33.45
IV.TERO.HHN. ML:1.7 0.0002485 0.08 AML other m 2018-03-06T03:49:34.27
OB.GAVE.EHE. ML:1.9 0.0003775 1.44 AML other m 2018-03-06T03:49:34.03
OB.GAVE.EHN. ML:2.0 0.00048350000000000004 0.58 AML other m 2018-03-06T03:49:35.33
IV.GUMA.HHE. ML:2.5 0.00126 0.22 AML other m 2018-03-06T03:49:36.78
IV.GUMA.HHN. ML:2.3 0.000836 1.44 AML other m 2018-03-06T03:49:36.08
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