Earthquake with magnitude of ML 1.5 on date 19-07-2021 and time 19:40:32 (Italy) in region 2 km N Barete (AQ)

A magnitude ML 1.5 earthquake occured in region: 2 km N Barete (AQ), on

  • 19-07-2021 17:40:32 (UTC)
  • 19-07-2021 19:40:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.467, 13.282 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
Barete AQ 2 737 737
Pizzoli AQ 4 4326 5063
Cagnano Amiterno AQ 5 1369 6432
Capitignano AQ 6 665 7097
Montereale AQ 7 2581 9678
Scoppito AQ 11 3727 13405
Campotosto AQ 13 542 13947
Borbona RI 13 617 14564
L'Aquila AQ 16 69753 84317
Posta RI 16 694 85011
Antrodoco RI 17 2588 87599
Amatrice RI 18 2657 90256
Micigliano RI 19 127 90383
Crognaleto TE 19 1297 91680
Borgo Velino RI 19 972 92652
Tornimparte AQ 20 3187 95839
Cittareale RI 20 482 96321
Lucoli AQ 20 1011 97332

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of L'Aquila (69753 inhabitants)
41 Km SW of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
74 Km W of Chieti (51815 inhabitants)
77 Km W of Pescara (121014 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
96 Km NE of Velletri (53303 inhabitants)
97 Km E of Viterbo (67173 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 1.5 2021-07-19
17:40:32
42.4667 13.2815 13 2021-07-19
17:56:39
Sala Sismica INGV-Roma 92961961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-19 17:40:32 ± 0.11
Latitude 42.4667 ± 0.0045
Longitude 13.2815 ± 0.0085
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 92961961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 377
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 20
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) 0.62683
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 92961961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-19 17:56:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VITU.HHZ. 2021-07-19T17:41:04.55 3.0 positive manual Pg 4.46 0
IV.CSP1.EHZ. 2021-07-19T17:40:53.93 0.6 undecidable manual S 355 0.6268 92 0.44 42
IT.MTCL.HGZ. 2021-07-19T17:40:51.97 3.0 undecidable manual S -0.38 0
IV.MC2.EHZ. 2021-07-19T17:40:48.76 0.6 undecidable manual S 351 0.4497 94 0.53 42
IV.MNTP.HNZ. 2021-07-19T17:40:45.85 3.0 undecidable manual P 0.06 0
IV.CSP1.EHZ. 2021-07-19T17:40:44.82 1.0 positive manual P 355 0.6268 92 0.23 22
IV.MTRA.EHZ. 2021-07-19T17:40:43.28 0.3 undecidable manual S 16 0.3022 96 -0.59 65
IV.FIAM.HNE. 2021-07-19T17:40:42.10 0.3 undecidable manual S 211 0.2329 100 0.26 71
IV.GIGS.HHE. 2021-07-19T17:40:41.33 0.6 undecidable manual S 94 0.2149 101 0 50
IV.MC2.EHZ. 2021-07-19T17:40:41.61 0.1 undecidable manual P 351 0.4497 94 0.05 94
IV.LNSS.HHN. 2021-07-19T17:40:41.28 0.3 undecidable manual S 308 0.2239 101 -0.3 71
IV.SMA1.EHZ. 2021-07-19T17:40:40.14 0.3 undecidable manual S 14 0.1682 108 0.15 74
IV.NRCA.HHZ. 2021-07-19T17:40:40.29 3.0 positive manual P 0 0
IV.FAGN.HHZ. 2021-07-19T17:40:39.53 0.6 positive manual P 132 0.3004 96 0.52 44
IV.T1299.EHE. 2021-07-19T17:40:39.80 0.6 undecidable manual S 0 0.1673 108 -0.16 49
IV.TERO.HHZ. 2021-07-19T17:40:38.63 0.1 undecidable manual P 57 0.2842 97 -0.11 97
IV.MTRA.EHZ. 2021-07-19T17:40:38.84 0.6 undecidable manual P 16 0.3022 96 -0.2 48
IV.FIAM.HNE. 2021-07-19T17:40:37.65 0.1 undecidable manual P 211 0.2329 100 -0.22 96
IV.RM33.EHZ. 2021-07-19T17:40:37.35 0.3 undecidable manual S 311 0.0648 144 -0.14 75
IV.GIGS.HHE. 2021-07-19T17:40:37.51 0.1 undecidable manual P 94 0.2149 101 -0.06 99
IV.LNSS.HHN. 2021-07-19T17:40:37.63 0.1 undecidable manual P 308 0.2239 101 -0.09 99
IV.SMA1.EHZ. 2021-07-19T17:40:36.93 0.1 undecidable manual P 14 0.1682 108 0.13 98
IV.T1299.EHE. 2021-07-19T17:40:36.83 0.1 undecidable manual P 0 0.1673 108 0.05 100
IV.RM33.EHZ. 2021-07-19T17:40:35.51 1.0 undecidable manual P 311 0.0648 144 0.16 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.4 0.0002605 0.18 AML other m 2021-07-19T17:40:37.46
IV.RM33.HNE. ML:1.4 0.000328 0.62 AML other m 2021-07-19T17:40:37.88
IV.RM33.EHE. ML:1.4 0.0003205 0.62 AML other m 2021-07-19T17:40:37.88
IV.RM33.HNN. ML:1.4 0.000297 0.7 AML other m 2021-07-19T17:40:38.55
IV.SMA1.EHE. ML:2.2 0.001135 0.4 AML other m 2021-07-19T17:40:40.67
IV.SMA1.EHN. ML:1.8 0.00053 0.24 AML other m 2021-07-19T17:40:40.66
IV.MTRA.EHN. ML:1.7 0.000183 0.48 AML other m 2021-07-19T17:40:43.49
IV.MTRA.EHE. ML:1.8 0.0002495 0.18 AML other m 2021-07-19T17:40:43.84
IV.NRCA.HHE. ML:1.4 8.265E-5 0.7 AML other m 2021-07-19T17:40:46.42
IV.NRCA.HHN. ML:1.3 6.53E-5 0.12 AML other m 2021-07-19T17:40:47.16
IV.FAGN.HHN. ML:1.4 0.000112 0.5 AML other m 2021-07-19T17:40:47.00
IV.FAGN.HHE. ML:1.4 0.00010475 0.4 AML other m 2021-07-19T17:40:49.33
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