Earthquake with magnitude of ML 1.1 on date 22-08-2019 and time 11:15:54 (Italy) in region 8 km W Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 8 km W Accumoli (RI), on

  • 22-08-2019 09:15:54 (UTC)
  • 22-08-2019 11:15:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.69, 13.15 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.

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 8 667 667
Cittareale RI 8 482 1149
Cascia PG 11 3217 4366
Norcia PG 12 4957 9323
Amatrice RI 14 2657 11980
Arquata del Tronto AP 15 1178 13158
Monteleone di Spoleto PG 17 599 13757
Poggiodomo PG 18 117 13874
Posta RI 19 694 14568

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of L'Aquila (69753 inhabitants)
44 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
91 Km W of Pescara (121014 inhabitants)
92 Km W of Chieti (51815 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 1000 ML 1.1 2019-08-22
09:15:54
42.69 13.15 12 2019-11-13
14:31:07
Bollettino Sismico Italiano INGV 73292951
Rev 100 ML 1.1 2019-08-22
09:15:54
42.69 13.15 16 2019-08-22
09:34:02
Sala Sismica INGV-Roma 71695641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-22 09:15:54 ± 0.13
Latitude 42.69 ± 0.01
Longitude 13.15 ± 0.01
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 73292951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 968
Semi-minor axis of confidence ellipse (meter) 448
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 970
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 221
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.4002
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 73292951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-16 21:26:27

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 71695641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-22 09:34:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BRMO.HHZ. 2019-08-22T09:17:05.68 3.0 undecidable manual Sn -2.85 0
GU.GRAM.HHZ. 2019-08-22T09:16:52.64 3.0 undecidable manual Sn -0.66 0
IV.ACATE.EHZ. 2019-08-22T09:16:52.51 3.0 negative manual Pn -2.47 0
IV.NDIM.HNZ. 2019-08-22T09:16:43.23 3.0 undecidable manual Sn 1.61 0
IV.RIBO.EHZ.01 2019-08-22T09:16:43.02 3.0 undecidable manual Sg 4.96 0
MN.BNI.HHZ. 2019-08-22T09:16:43.58 3.0 undecidable manual Pn -2.19 0
IV.VENT.EHZ. 2019-08-22T09:16:40.47 3.0 undecidable manual Sn -2.82 0
IV.ILLI.HHZ. 2019-08-22T09:16:40.01 3.0 undecidable manual Pn 4.64 0
IT.FIE.HGZ. 2019-08-22T09:16:38.65 3.0 undecidable manual Sg 8.33 0
IV.MRLC.HHZ. 2019-08-22T09:16:36.86 3.0 undecidable manual Sn -2.71 0
AC.VLO.HHZ. 2019-08-22T09:16:36.14 3.0 undecidable manual Pg 9.13 0
IV.TDS.HHZ. 2019-08-22T09:16:32.97 3.0 undecidable manual Pg 12.54 0
IV.IMI.HHZ. 2019-08-22T09:16:30.92 3.0 undecidable manual Pn -1.72 0
IV.LAV9.HHZ. 2019-08-22T09:16:25.84 3.0 undecidable manual Sn -5.01 0
GU.RNCA.HHZ. 2019-08-22T09:16:19.74 3.0 positive manual Pn -2.81 0
IV.MAGA.HHZ. 2019-08-22T09:16:19.43 3.0 positive manual Pg 6.64 0
IT.VNF1.HGZ. 2019-08-22T09:16:18.23 3.0 undecidable manual Sn -5.5 0
IV.CRE.HHZ. 2019-08-22T09:16:18.12 3.0 undecidable manual Sn -0.79 0
IV.EUCT.HNZ. 2019-08-22T09:16:16.66 3.0 undecidable manual Pn -6.2 0
SL.LJU.BHZ. 2019-08-22T09:16:16.87 3.0 undecidable manual Sg -4.21 0
IV.CSP1.EHZ. 2019-08-22T09:16:09.32 0.6 undecidable manual S 6 0.4002 92 0.29 48
IV.GIGS.HHZ. 2019-08-22T09:16:08.67 0.3 undecidable manual S 127 0.3939 92 -0.19 69
IV.FDMO.HHZ. 2019-08-22T09:16:07.48 0.6 undecidable manual S 353 0.3453 93 0.06 48
IV.VBKN.HHZ. 2019-08-22T09:16:07.05 3.0 positive manual Pg 3.99 0
IV.TERO.HHZ. 2019-08-22T09:16:06.96 0.6 undecidable manual S 102 0.3417 93 -0.36 45
IV.MMO1.EHZ. 2019-08-22T09:16:04.42 0.6 undecidable manual S 32 0.2437 95 0.01 49
IV.CAMP.HHE. 2019-08-22T09:16:04.60 0.6 undecidable manual S 129 0.2482 95 0.05 50
IV.MC2.EHZ. 2019-08-22T09:16:04.00 0.6 undecidable manual S 8 0.2194 96 0.3 49
IV.CSP1.EHZ. 2019-08-22T09:16:03.04 0.1 undecidable manual P 6 0.4002 92 0.05 96
IV.GIGS.HHZ. 2019-08-22T09:16:02.24 0.3 undecidable manual P 127 0.3939 92 -0.65 60
IV.MTRA.EHZ. 2019-08-22T09:16:02.53 0.6 undecidable manual S 71 0.1925 98 -0.38 46
IV.FDMO.HHZ. 2019-08-22T09:16:02.05 0.1 undecidable manual P 353 0.3453 93 0 96
IV.TERO.HHZ. 2019-08-22T09:16:02.01 0.3 undecidable manual P 102 0.3417 93 0.01 73
IV.SMA1.EHE. 2019-08-22T09:16:01.86 0.6 undecidable manual S 115 0.1511 105 0.15 50
IV.MCRV.HHZ. 2019-08-22T09:16:01.54 3.0 undecidable manual Pn -1.84 0
IV.NRCA.HHE. 2019-08-22T09:16:00.91 0.6 undecidable manual S 350 0.1421 108 -0.53 43
IV.T1299.HNN. 2019-08-22T09:16:00.79 0.6 undecidable manual S 121 0.1151 117 0.09 51
IV.MMO1.EHZ. 2019-08-22T09:16:00.28 0.1 undecidable manual P 32 0.2437 95 -0.03 97
IV.CAMP.HHE. 2019-08-22T09:16:00.53 0.3 undecidable manual P 129 0.2482 95 0.14 75
IT.VNF1.HGZ. 2019-08-22T09:16:00.65 3.0 negative manual Pg 5.53 0
IV.MC2.EHZ. 2019-08-22T09:15:59.99 0.1 undecidable manual P 8 0.2194 96 0.08 100
IV.SMA1.EHE. 2019-08-22T09:15:59.09 0.1 undecidable manual P 115 0.1511 105 0.34 98
IV.MTRA.EHZ. 2019-08-22T09:15:59.32 0.1 undecidable manual P 71 0.1925 98 -0.13 97
IV.NRCA.HHE. 2019-08-22T09:15:58.52 0.1 undecidable manual P 350 0.1421 108 -0.08 98
IV.T1299.HNN. 2019-08-22T09:15:58.43 0.1 undecidable manual P 121 0.1151 117 0.25 100
IV.PTRJ.HNZ. 2019-08-22T09:15:56.85 3.0 undecidable manual Pn 1.19 0
IV.IMOL.HNZ. 2019-08-22T09:15:56.29 3.0 positive manual Pg 1.1 0
IV.MTMR.HNZ. 2019-08-22T09:15:56.87 3.0 undecidable manual Pn -4.6 0
IV.SENI.HNZ. 2019-08-22T09:15:50.99 3.0 undecidable manual S -5.1 0
IV.POFI.HHZ. 2019-08-22T09:15:49.46 3.0 undecidable manual Pn -3.8 0
SL.LJU.BHZ. 2019-08-22T09:15:48.62 3.0 negative manual Pn -5.01 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HHN. ML:1.1 9.925107E-6 1.1424 AML other m 2019-08-22T09:15:59.27
IV.MTMR.HNN. ML:3.5 0.00058140665 0.384 AML other m 2019-08-22T09:15:59.62
IV.MTMR.HNE. ML:3.6 0.0007905759 0.4096 AML other m 2019-08-22T09:15:59.62
IV.PTRJ.HNE. ML:3.2 0.00053010723 0.9344 AML other m 2019-08-22T09:16:01.06
IV.MTRA.EHE. ML:1.3 0.00013135295 0.224 AML other m 2019-08-22T09:16:03.14
IV.MTRA.EHN. ML:1.2 0.00010689919 0.16 AML other m 2019-08-22T09:16:03.35
IV.MTRA.HNE. ML:1.3 0.000130144915 0.2112 AML other m 2019-08-22T09:16:03.65
IV.FDMO.HHE. ML:0.8 2.1828995E-5 0.2624 AML other m 2019-08-22T09:16:07.81
IV.FDMO.HHN. ML:0.8 1.9189185E-5 1.7056 AML other m 2019-08-22T09:16:07.00
IV.TERO.HHE. ML:1.1 4.694734E-5 0.1216 AML other m 2019-08-22T09:16:07.99
IV.TERO.HHN. ML:1 4.2073485E-5 1.9424 AML other m 2019-08-22T09:16:08.99
IV.IMOL.HNN. ML:3.5 0.0008799559 0.0576 AML other m 2019-08-22T09:16:08.89
IV.IMOL.HNE. ML:3.5 0.0007980846 0.0512 AML other m 2019-08-22T09:16:09.47
IV.CSP1.EHE. ML:1 3.216327E-5 0.2176 AML other m 2019-08-22T09:16:10.58
IV.MCRV.HHN. ML:1.8 1.1434486E-5 1.4816 AML other m 2019-08-22T09:16:11.15
SL.LJU.BHE. ML:3.9 0.00054658795 0.1984 AML other m 2019-08-22T09:16:17.54
IV.MCRV.HHE. ML:1.8 7.6383375E-6 0.3968 AML other m 2019-08-22T09:16:20.34
IV.MTRA.HNN. ML:1.3 0.00012613375 0.6464 AML other m 2019-08-22T09:16:24.67
GU.RNCA.HHE. ML:2.5 1.8648205E-5 0.0576 AML other m 2019-08-22T09:16:27.94
IV.EUCT.HNN. ML:3.9 0.0004193558 0.0832 AML other m 2019-08-22T09:16:30.07
IV.MAGA.HHN. ML:3.4 0.00014856515 0.0576 AML other m 2019-08-22T09:16:31.06
IV.MAGA.HHE. ML:3.8 0.0003387679 1.9232 AML other m 2019-08-22T09:16:32.01
IV.PTRJ.HHN. ML:1.5 9.99325E-6 0.1152 AML other m 2019-08-22T09:16:36.28
IV.POFI.HHE. ML:0.8 7.1121415E-6 0.3392 AML other m 2019-08-22T09:16:41.62
IV.PTRJ.HHE. ML:1.5 1.1099167E-5 0.4224 AML other m 2019-08-22T09:16:50.12
GU.RNCA.HHN. ML:2.2 1.0952235E-5 0.6592 AML other m 2019-08-22T09:16:50.47
IV.VBKN.HHE. ML:3.7 0.00122889 0.0768 AML other m 2019-08-22T09:16:51.63
IV.IMI.HHE. ML:2.8 2.8017585E-5 0.5152 AML other m 2019-08-22T09:16:52.04
IV.EUCT.HNE. ML:3.9 0.00042225585 0.5376 AML other m 2019-08-22T09:16:54.43
IV.VBKN.HHN. ML:3.7 0.00116478535 0.0768 AML other m 2019-08-22T09:16:55.39
IV.ILLI.HHE. ML:4.8 0.0017213665 0.7424 AML other m 2019-08-22T09:17:29.60
IV.IMI.HHN. ML:2.8 3.168005E-5 1.504 AML other m 2019-08-22T09:17:44.10
IV.ILLI.HHN. ML:4.8 0.001939859 1.1232 AML other m 2019-08-22T09:18:02.72
AC.VLO.HHE. ML:4.6 0.0007748981 0.0576 AML other m 2019-08-22T09:18:04.57
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