Earthquake with magnitude of ML 1.4 on date 19-09-2021 and time 01:10:12 (UTC) in region 1 km NW Prata d'Ansidonia (AQ)

A magnitude ML 1.4 earthquake occured in region: 1 km NW Prata d'Ansidonia (AQ), on

  • 19-09-2021 01:10:12 (UTC)
  • 19-09-2021 03:10:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.287, 13.602 at 10 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
Prata d'Ansidonia AQ 1 496 496
San Demetrio ne' Vestini AQ 4 1854 2350
Fagnano Alto AQ 4 418 2768
San Pio delle Camere AQ 4 661 3429
Barisciano AQ 5 1828 5257
Villa Sant'Angelo AQ 6 424 5681
Fontecchio AQ 6 369 6050
Poggio Picenze AQ 6 1136 7186
Sant'Eusanio Forconese AQ 6 394 7580
Caporciano AQ 7 230 7810
Carapelle Calvisio AQ 7 87 7897
Santo Stefano di Sessanio AQ 7 111 8008
Castelvecchio Calvisio AQ 8 153 8161
Calascio AQ 9 137 8298
Fossa AQ 9 721 9019
Tione degli Abruzzi AQ 10 310 9329
Ocre AQ 11 1167 10496
Rocca di Cambio AQ 11 533 11029
Rocca di Mezzo AQ 11 1526 12555
Navelli AQ 12 554 13109
Castel del Monte AQ 14 413 13522
Ofena AQ 14 506 14028
Capestrano AQ 14 884 14912
Villa Santa Lucia degli Abruzzi AQ 15 123 15035
Acciano AQ 16 327 15362
Secinaro AQ 16 359 15721
Collepietro AQ 16 237 15958
San Benedetto in Perillis AQ 18 113 16071
L'Aquila AQ 18 69753 85824
Ovindoli AQ 18 1227 87051
Molina Aterno AQ 19 386 87437
Gagliano Aterno AQ 20 254 87691

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of L'Aquila (69753 inhabitants)
42 Km S of Teramo (54892 inhabitants)
47 Km W of Chieti (51815 inhabitants)
52 Km SW of Montesilvano (53738 inhabitants)
54 Km W of Pescara (121014 inhabitants)
75 Km E of Tivoli (56533 inhabitants)
79 Km E of Guidonia Montecelio (88673 inhabitants)
84 Km E of Terni (111501 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
ML 1.4 2021-09-19
01:10:12
42.287 13.6023 10 2021-09-19
01:19:00
Sala Sismica INGV-Roma 95610101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-19 01:10:12 ± 0.08
Latitude 42.2870 ± 0.0045
Longitude 13.6023 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95610101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 545
Semi-minor axis of confidence ellipse (meter) 437
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3957
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 95610101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-19 01:19:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.COLB.HHZ. 2021-09-19T01:10:42.29 3.0 positive manual P 1.34 0
IV.MMO1.EHZ. 2021-09-19T01:10:36.13 3.0 undecidable manual S -0.02 0
IV.CSP1.EHZ. 2021-09-19T01:10:29.19 3.0 undecidable manual P -0.3 0
IV.MNTT.EHZ. 2021-09-19T01:10:29.35 3.0 positive manual P 1.56 0
IV.MF5.EHZ. 2021-09-19T01:10:27.35 3.0 undecidable manual P 0.72 0
IV.FIAM.HHZ. 2021-09-19T01:10:26.02 0.3 undecidable manual S 267 0.3597 50 -0.06 72
IV.RM33.EHZ. 2021-09-19T01:10:26.49 0.3 undecidable manual S 308 0.3624 50 0.33 68
IV.MMO1.EHZ. 2021-09-19T01:10:25.56 3.0 positive manual P 0 0
IV.NRCA.HHZ. 2021-09-19T01:10:25.57 3.0 positive manual P -0.36 0
IV.TERO.HHZ. 2021-09-19T01:10:25.28 0.1 undecidable manual S 0 0.3354 50 -0.09 96
IV.CAMP.HHZ. 2021-09-19T01:10:23.83 0.1 undecidable manual S 330 0.2869 50 -0.1 97
IV.VVLD.HHZ. 2021-09-19T01:10:21.50 3.0 negative manual P -0.64 0
IV.SMA1.EHZ. 2021-09-19T01:10:20.82 0.1 undecidable manual P 330 0.3957 50 -0.22 93
IV.INTR.HHZ. 2021-09-19T01:10:20.32 3.0 negative manual P 0.01 0
IV.FIAM.HHZ. 2021-09-19T01:10:20.42 0.1 undecidable manual P 267 0.3597 50 0.01 97
IV.RM33.EHZ. 2021-09-19T01:10:20.41 0.1 undecidable manual P 308 0.3624 50 -0.05 96
MN.AQU.HHZ. 2021-09-19T01:10:20.02 0.3 undecidable manual S 295 0.1601 119 0.31 71
IV.GIGS.HHN. 2021-09-19T01:10:19.89 0.1 undecidable manual S 353 0.1673 118 -0.06 100
IV.TERO.HHZ. 2021-09-19T01:10:19.92 0.1 undecidable manual P 0 0.3354 50 -0.09 96
IV.PTQR.HHZ. 2021-09-19T01:10:19.40 3.0 negative manual P -0.36 0
IV.T0110.HHZ. 2021-09-19T01:10:19.22 0.1 undecidable manual S 114 0.1412 122 0.16 98
IV.CAMP.HHZ. 2021-09-19T01:10:19.14 0.1 undecidable manual P 330 0.2869 50 -0.03 98
MN.AQU.HHZ. 2021-09-19T01:10:17.07 0.1 undecidable manual P 295 0.1601 119 0.34 94
IV.T0110.HHZ. 2021-09-19T01:10:16.65 0.1 undecidable manual P 114 0.1412 122 0.29 96
IV.GIGS.HHN. 2021-09-19T01:10:16.98 0.1 undecidable manual P 353 0.1673 118 0.11 99
IV.FAGN.HHZ. 2021-09-19T01:10:15.86 0.1 undecidable manual S 213 0.0252 164 -0.32 97
IV.FAGN.HHZ. 2021-09-19T01:10:14.32 0.1 undecidable manual P 213 0.0252 164 -0.38 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0110.HHN. ML:1.9 0.0007195 1.74 AML other m 2021-09-19T01:10:19.07
IV.T0110.HHE. ML:1.8 0.000591 0.92 AML other m 2021-09-19T01:10:20.82
IV.PTQR.HHE. ML:1.1 5.71E-5 1.4 AML other m 2021-09-19T01:10:25.76
IV.PTQR.HHN. ML:1.1 4.795E-5 1.82 AML other m 2021-09-19T01:10:26.05
IV.INTR.HHN. ML:1.7 0.000171 0.4 AML other m 2021-09-19T01:10:27.67
IV.FIAM.HHE. ML:1 3.545E-5 1.4 AML other m 2021-09-19T01:10:28.82
IV.FIAM.HHN. ML:1.1 4.7E-5 0.42 AML other m 2021-09-19T01:10:28.00
IV.SMA1.EHE. ML:1.4 7.93E-5 0.4 AML other m 2021-09-19T01:10:29.63
IV.RM33.EHN. ML:1.2 6.125E-5 0.4 AML other m 2021-09-19T01:10:30.28
IV.RM33.EHE. ML:1.4 8.85E-5 0.98 AML other m 2021-09-19T01:10:30.46
IV.SMA1.EHN. ML:1.4 7.52E-5 1.52 AML other m 2021-09-19T01:10:32.02
IV.VVLD.HHE. ML:1.2 4.285E-5 0.5 AML other m 2021-09-19T01:10:32.29
IV.INTR.HHE. ML:1.4 9.03E-5 0.74 AML other m 2021-09-19T01:10:32.61
IV.NRCA.HHN. ML:1.6 6.365E-5 0.12 AML other m 2021-09-19T01:10:37.42
IV.NRCA.HHE. ML:1.5 5.415E-5 0.4 AML other m 2021-09-19T01:10:37.68
IV.VVLD.HHN. ML:1.1 3.375E-5 0.72 AML other m 2021-09-19T01:10:37.35
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