Earthquake with magnitude of ML 1.4 on date 26-02-2020 and time 16:43:35 (UTC) in region 6 km W Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 6 km W Accumoli (RI), on

  • 26-02-2020 16:43:35 (UTC)
  • 26-02-2020 17:43:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.69, 13.17 at 11 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.

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 6 667 667
Cittareale RI 8 482 1149
Amatrice RI 12 2657 3806
Norcia PG 13 4957 8763
Cascia PG 13 3217 11980
Arquata del Tronto AP 14 1178 13158
Monteleone di Spoleto PG 19 599 13757
Montereale AQ 20 2581 16338
Posta RI 20 694 17032
Poggiodomo PG 20 117 17149

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of L'Aquila (69753 inhabitants)
44 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
89 Km W of Pescara (121014 inhabitants)
90 Km W of Chieti (51815 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.4 2020-02-26
16:43:35
42.69 13.17 11 2020-02-26
16:53:07
Sala Sismica INGV-Roma 76843801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-26 16:43:35 ± 0.1
Latitude 42.69 ± 0.00
Longitude 13.17 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76843801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 609
Semi-minor axis of confidence ellipse (meter) 525
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32376
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 76843801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-26 16:53:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2020-02-26T16:45:20.09 3.0 undecidable manual Sn 5.78 0
IV.MBAL.EHZ. 2020-02-26T16:45:17.03 3.0 undecidable manual Sg 16.91 0
IV.MILN.HNZ. 2020-02-26T16:45:13.79 3.0 undecidable manual Sn -0.25 0
IV.SALB.HHZ. 2020-02-26T16:45:07.02 3.0 undecidable manual Sn 3.73 0
IV.ORI.HHZ. 2020-02-26T16:45:06.57 3.0 undecidable manual Sn 5.31 0
IV.ZOVE.HNZ. 2020-02-26T16:44:58.46 3.0 undecidable manual Sg 8.64 0
IX.CSG3.HNZ.01 2020-02-26T16:44:56.16 3.0 undecidable manual Sg 20.49 0
IV.SPS2.HHZ. 2020-02-26T16:44:41.74 3.0 negative manual Pg 14.2 0
IV.IFOR.HHZ. 2020-02-26T16:44:38.07 3.0 undecidable manual Sg 12.48 0
IV.ZONE.HHZ. 2020-02-26T16:44:29.09 3.0 negative manual Pg 5.01 0
IV.IMOL.HNZ. 2020-02-26T16:44:27.95 3.0 undecidable manual Sg 2.52 0
IV.COLB.HHZ. 2020-02-26T16:44:22.15 3.0 undecidable manual Sn -2.27 0
IV.SALB.HHZ. 2020-02-26T16:44:18.75 3.0 positive manual Pn -2.32 0
IV.MAON.HHZ. 2020-02-26T16:44:16.45 3.0 undecidable manual Sg -0.83 0
IV.MCRV.HHZ. 2020-02-26T16:44:16.23 3.0 undecidable manual Pg 12.08 0
IV.VENL.HNZ. 2020-02-26T16:44:09.94 3.0 undecidable manual Pn -0.09 0
IX.STN3.HNZ.01 2020-02-26T16:44:06.15 3.0 undecidable manual Pn -3.6 0
IV.VIVA.HHZ. 2020-02-26T16:44:05.37 3.0 undecidable manual Sg 1.42 0
IX.MNT3.HHZ.02 2020-02-26T16:44:00.53 3.0 negative manual Pn -2.12 0
IV.MNTT.EHZ. 2020-02-26T16:43:58.63 3.0 undecidable manual Sg 5.68 0
IV.FIR.HHZ. 2020-02-26T16:43:57.19 3.0 negative manual Pg -0.59 0
IV.PE3.EHZ. 2020-02-26T16:43:50.68 3.0 undecidable manual Pg 1.61 0
IT.VNF1.HGZ. 2020-02-26T16:43:50.98 3.0 positive manual Pn -0.04 0
IV.VIVA.HHZ. 2020-02-26T16:43:49.96 3.0 positive manual Pg 2.23 0
IV.LPEL.HHZ. 2020-02-26T16:43:46.41 3.0 undecidable manual Pn 0.36 0
IV.MMO1.EHZ. 2020-02-26T16:43:45.37 0.3 undecidable manual S 28 0.2356 50 0.16 98
IV.RM33.EHZ. 2020-02-26T16:43:43.98 0.6 undecidable manual S 171 0.1853 50 0.27 63
IV.ARVD.HHZ. 2020-02-26T16:43:43.81 3.0 undecidable manual P -1.64 0
IV.TERO.HHZ. 2020-02-26T16:43:42.20 0.6 undecidable manual P 102 0.3238 50 -0.5 57
IV.NRCA.HHE. 2020-02-26T16:43:42.44 0.6 undecidable manual S 343 0.1484 123 -0.12 66
IV.LNSS.HHZ. 2020-02-26T16:43:41.89 0.6 undecidable manual S 228 0.1322 126 -0.16 65
IV.RM33.EHZ. 2020-02-26T16:43:41.00 1.0 undecidable manual P 171 0.1853 50 0.67 28
IV.MMO1.EHZ. 2020-02-26T16:43:41.18 1.0 undecidable manual P 28 0.2356 50 -0.02 32
IV.SMA1.EHZ. 2020-02-26T16:43:41.99 0.6 undecidable manual S 117 0.134 126 -0.11 67
IV.NRCA.HHE. 2020-02-26T16:43:39.76 0.3 undecidable manual P 343 0.1484 123 0.09 98
IV.SMA1.EHZ. 2020-02-26T16:43:39.43 0.3 undecidable manual P 117 0.134 126 0.03 99
IV.LNSS.HHZ. 2020-02-26T16:43:39.34 0.3 undecidable manual P 228 0.1322 126 -0.04 100
IV.GAVE.EHZ. 2020-02-26T16:43:35.68 3.0 negative manual Pn -5.56 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.6 0.00028464435 0.4736 AML other m 2020-02-26T16:43:55.23
IV.GAVE.EHN. ML:1.7 0.00032350455 0.4608 AML other m 2020-02-26T16:43:55.48
IV.GAVE.HNE. ML:1.5 0.000222083685 0.3584 AML other m 2020-02-26T16:43:49.99
IV.GAVE.HNN. ML:1.6 0.000235706775 0.512 AML other m 2020-02-26T16:43:55.50
IV.LNSS.HHE. ML:1.4 0.00023430395 0.1536 AML other m 2020-02-26T16:43:42.00
IV.LNSS.HHN. ML:1.4 0.00023599705 0.1536 AML other m 2020-02-26T16:43:42.59
IV.LNSS.HNE. ML:1.6 0.00036822855 0.2944 AML other m 2020-02-26T16:43:42.01
IV.LNSS.HNN. ML:1.3 0.0001998932 0.1536 AML other m 2020-02-26T16:43:42.59
IV.RM33.EHE. ML:0.8 4.5850545E-5 0.1408 AML other m 2020-02-26T16:43:44.24
IV.RM33.EHN. ML:0.8 5.1462535E-5 0.7424 AML other m 2020-02-26T16:43:50.35
IV.RM33.HNE. ML:1.3 0.00013288895 0.896 AML other m 2020-02-26T16:43:49.48
IV.RM33.HNN. ML:1.4 0.00018101315 0.9856 AML other m 2020-02-26T16:43:50.66
IV.TERO.HHE. ML:0.6 1.6793915E-5 0.1408 AML other m 2020-02-26T16:43:47.39
IV.TERO.HHN. ML:0.7 2.144492E-5 0.1408 AML other m 2020-02-26T16:43:48.08
IV.TERO.HNE. ML:1.5 0.0001300198 1.1008 AML other m 2020-02-26T16:44:06.39
IV.TERO.HNN. ML:1.7 0.0001924242 0.6528 AML other m 2020-02-26T16:43:47.23
IV.ARVD.HHE. ML:1.6 5.2058925E-5 1.6 AML other m 2020-02-26T16:44:12.99
IV.ARVD.HHN. ML:1.3 2.53640025E-5 0.768 AML other m 2020-02-26T16:44:07.56
IV.LPEL.HHE. ML:1.5 2.5617452E-5 0.6016 AML other m 2020-02-26T16:44:02.44
IV.LPEL.HHN. ML:1.6 3.4155285E-5 0.6144 AML other m 2020-02-26T16:44:10.02
IV.LPEL.HNE. ML:2.3 0.0001675154 0.7296 AML other m 2020-02-26T16:44:26.25
IV.LPEL.HNN. ML:2.3 0.0001643326 0.576 AML other m 2020-02-26T16:44:11.38
IV.VIVA.HHE. ML:2.6 0.00032168585 0.1536 AML other m 2020-02-26T16:44:06.32
IV.VIVA.HHN. ML:2.7 0.00044099675 0.0896 AML other m 2020-02-26T16:44:06.28
IV.PE3.EHE. ML:2.2 0.0001196425 0.064 AML other m 2020-02-26T16:43:55.97
IV.PE3.EHN. ML:2.2 0.00011077395 0.0896 AML other m 2020-02-26T16:43:56.28
IV.FIR.HHE. ML:3.1 0.00041706745 0.0768 AML other m 2020-02-26T16:44:49.86
IV.FIR.HHN. ML:3.2 0.0004470428 0.1024 AML other m 2020-02-26T16:44:49.80
IV.FIR.HNE. ML:3.1 0.00040771115 0.1152 AML other m 2020-02-26T16:44:46.04
IV.FIR.HNN. ML:3.2 0.00044711975 0.1152 AML other m 2020-02-26T16:44:49.85
IX.MNT3.HHE.02 ML:3.4 0.0004209046 0.0896 AML other m 2020-02-26T16:44:21.06
IX.MNT3.HHN.02 ML:3.4 0.00049727615 0.0768 AML other m 2020-02-26T16:44:25.69
IX.MNT3.HNE.01 ML:3.2 0.00028192885 0.1152 AML other m 2020-02-26T16:44:21.06
IX.MNT3.HNN.01 ML:3.3 0.000350033445 0.1024 AML other m 2020-02-26T16:44:25.68
IX.STN3.HHE.02 ML:5.4 0.0291061 0.0896 AML other m 2020-02-26T16:44:17.61
IX.STN3.HHN.02 ML:5.2 0.0193521735 0.0896 AML other m 2020-02-26T16:44:09.28
IV.VENL.HNE. ML:4.3 0.0023695075 1.8688 AML other m 2020-02-26T16:44:29.72
IV.VENL.HNN. ML:4.2 0.001945881 1.4592 AML other m 2020-02-26T16:44:33.60
TDMT - Time Domain Moment Tensor
Focal Mechanism 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 full SEED format Download