Earthquake with magnitude of ML 1.1 on date 20-09-2019 and time 00:42:05 (Italy) in region 5 km E Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 5 km E Accumoli (RI), on

  • 19-09-2019 22:42:05 (UTC)
  • 20-09-2019 00:42:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7, 13.31 at 13 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 5 667 667
Amatrice RI 8 2657 3324
Arquata del Tronto AP 9 1178 4502
Acquasanta Terme AP 12 2916 7418
Cittareale RI 15 482 7900
Valle Castellana TE 16 977 8877
Campotosto AQ 16 542 9419
Montegallo AP 17 523 9942
Rocca Santa Maria TE 18 537 10479
Cortino TE 18 656 11135
Capitignano AQ 19 665 11800
Montereale AQ 20 2581 14381

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Teramo (54892 inhabitants)
39 Km N of L'Aquila (69753 inhabitants)
57 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
80 Km W of Chieti (51815 inhabitants)
88 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
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 1.1 2019-09-19
22:42:05
42.7 13.31 13 2019-09-19
22:52:41
Sala Sismica INGV-Roma 72571971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-19 22:42:05 ± 0.05
Latitude 42.70 ± 0.00
Longitude 13.31 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72571971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 257
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 72571971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-19 22:52:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GIGS.HHZ. 2019-09-19T22:42:16.58 0.1 undecidable manual S 142 0.3076 96 -0.2 94
IV.GAVE.EHZ. 2019-09-19T22:42:16.84 0.1 undecidable manual S 270 0.3085 96 0.06 97
IV.LNSS.HHE. 2019-09-19T22:42:14.20 0.3 undecidable manual S 245 0.2212 100 -0.03 75
IV.TERO.HHZ. 2019-09-19T22:42:14.41 0.3 undecidable manual S 109 0.2248 100 0.06 74
IV.NRCA.HHZ. 2019-09-19T22:42:13.31 0.1 undecidable manual S 313 0.2014 102 -0.34 93
IV.MMO1.EHZ. 2019-09-19T22:42:13.83 0.1 undecidable manual S 3 0.2041 102 0.09 99
IV.RM33.EHZ. 2019-09-19T22:42:13.60 0.1 undecidable manual S 201 0.1996 102 -0.01 100
IV.CAMP.HHE. 2019-09-19T22:42:12.74 0.1 undecidable manual S 156 0.1736 106 -0.12 98
IV.GIGS.HHZ. 2019-09-19T22:42:11.82 0.6 undecidable manual P 142 0.3076 96 -0.05 48
IV.GAVE.EHZ. 2019-09-19T22:42:11.85 1.0 positive manual P 270 0.3085 96 -0.03 24
IV.RM33.EHZ. 2019-09-19T22:42:10.26 1.0 undecidable manual P 201 0.1996 102 0.22 24
IV.TERO.HHZ. 2019-09-19T22:42:10.54 0.1 undecidable manual P 109 0.2248 100 0.07 98
IV.NRCA.HHZ. 2019-09-19T22:42:10.08 0.3 positive manual P 313 0.2014 102 0.01 75
IV.LNSS.HHE. 2019-09-19T22:42:10.36 0.1 undecidable manual P 245 0.2212 100 -0.04 99
IV.MMO1.EHZ. 2019-09-19T22:42:10.25 0.6 positive manual P 3 0.2041 102 0.13 49
IV.MTRA.EHZ. 2019-09-19T22:42:10.51 0.1 undecidable manual S 45 0.0863 133 -0.09 100
IV.T1299.EHE. 2019-09-19T22:42:10.28 0.1 undecidable manual S 201 0.0648 143 0.11 100
IV.CAMP.HHE. 2019-09-19T22:42:09.67 0.1 undecidable manual P 156 0.1736 106 0.06 99
IV.SMA1.EHZ. 2019-09-19T22:42:09.92 0.1 undecidable manual S 166 0.0665 143 -0.28 97
IV.SMA1.EHZ. 2019-09-19T22:42:08.34 0.6 undecidable manual P 166 0.0665 143 0.27 48
IV.MTRA.EHZ. 2019-09-19T22:42:08.51 0.6 positive manual P 45 0.0863 133 0.2 49
IV.T1299.EHE. 2019-09-19T22:42:08.35 0.1 undecidable manual P 201 0.0648 143 0.29 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.2 0.0001947278 0.0768 AML other m 2019-09-19T22:42:10.28
IV.SMA1.EHN. ML:1.4 0.00028100595 0.1152 AML other m 2019-09-19T22:42:10.28
IV.MTRA.HNE. ML:1.2 0.000157078035 0.2688 AML other m 2019-09-19T22:42:11.12
IV.MTRA.EHE. ML:1.2 0.00016062025 0.2816 AML other m 2019-09-19T22:42:11.12
IV.MTRA.EHN. ML:1 0.00011050435 0.064 AML other m 2019-09-19T22:42:10.62
IV.NRCA.HNE. ML:1.2 0.00010748386 0.1152 AML other m 2019-09-19T22:42:13.59
IV.NRCA.HHE. ML:1.2 0.00010533145 0.128 AML other m 2019-09-19T22:42:13.54
IV.NRCA.HHN. ML:1 6.687817E-5 0.0896 AML other m 2019-09-19T22:42:13.42
IV.TERO.HHE. ML:0.6 2.204436E-5 0.064 AML other m 2019-09-19T22:42:15.51
IV.GAVE.EHE. ML:1 4.0720585E-5 0.1792 AML other m 2019-09-19T22:42:17.12
IV.GAVE.EHN. ML:1 4.700353E-5 0.1408 AML other m 2019-09-19T22:42:17.10
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