Earthquake with magnitude of ML 1.0 on date 17-10-2021 and time 19:35:31 (Italy) in region 3 km E Pizzoli (AQ)

A magnitude ML 1.0 earthquake occured in region: 3 km E Pizzoli (AQ), on

  • 17-10-2021 17:35:31 (UTC)
  • 17-10-2021 19:35:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.444, 13.326 at 16 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
Pizzoli AQ 3 4326 4326
Barete AQ 4 737 5063
Cagnano Amiterno AQ 8 1369 6432
Capitignano AQ 9 665 7097
Scoppito AQ 10 3727 10824
Montereale AQ 11 2581 13405
L'Aquila AQ 12 69753 83158
Campotosto AQ 13 542 83700
Lucoli AQ 17 1011 84711
Crognaleto TE 17 1297 86008
Tornimparte AQ 17 3187 89195
Borbona RI 18 617 89812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NW of L'Aquila (69753 inhabitants)
39 Km SW of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
76 Km SE of Foligno (57155 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
96 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 1.0 2021-10-17
17:35:31
42.4445 13.3262 17 2021-10-17
17:48:34
Sala Sismica INGV-Roma 96692611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 17:35:31 ± 0.23
Latitude 42.4445 ± 0.0090
Longitude 13.3262 ± 0.0085
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96692611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 937
Semi-minor axis of confidence ellipse (meter) 444
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 940
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41908
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 96692611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 17:48:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.STAL.HHZ. 2021-10-17T17:37:18.92 3.0 undecidable manual Sg 7.48 0
IV.CADC.EHZ. 2021-10-17T17:37:13.47 3.0 undecidable manual Sn 3.17 0
MN.VAE.HHZ. 2021-10-17T17:36:56.34 3.0 undecidable manual Pn 5.74 0
IV.VARE.HHZ. 2021-10-17T17:36:48.65 3.0 undecidable manual Pn 8.03 0
IV.MCPD.HHZ. 2021-10-17T17:36:47.99 3.0 undecidable manual Pn 5.31 0
IV.SCIAC.HHZ. 2021-10-17T17:36:46.14 3.0 positive manual Pn -2.81 0
IV.MRLC.HHZ. 2021-10-17T17:36:44.45 3.0 undecidable manual Sn -0.87 0
IV.VOBA.EHZ. 2021-10-17T17:36:33.48 3.0 positive manual Pg 6.06 0
IV.EUCT.HNZ. 2021-10-17T17:36:32.35 3.0 undecidable manual Pn 0.43 0
OT.OT17.EHZ. 2021-10-17T17:36:29.43 3.0 undecidable manual Sn 0.68 0
GU.GSCL.HHZ. 2021-10-17T17:36:20.96 3.0 negative manual Pg 7.45 0
IV.PARC.HHZ. 2021-10-17T17:36:12.04 3.0 undecidable manual S -0.8 0
IV.LRP.EHZ. 2021-10-17T17:35:49.99 3.0 positive manual P -2.85 0
IV.SRES.HHZ. 2021-10-17T17:35:48.53 3.0 undecidable manual P 2.34 0
IV.NRCA.HHZ. 2021-10-17T17:35:46.48 0.1 undecidable manual S 338 0.4191 99 -0.27 86
IV.TERO.HHZ. 2021-10-17T17:35:42.65 0.6 undecidable manual S 49 0.2716 107 0.17 48
IV.LNSS.HHZ. 2021-10-17T17:35:41.90 0.6 undecidable manual S 307 0.2635 107 -0.35 43
IV.SMA1.EHZ. 2021-10-17T17:35:40.01 0.3 undecidable manual S 2 0.1862 118 -0.12 70
IV.NRCA.HHZ. 2021-10-17T17:35:40.44 0.1 undecidable manual P 338 0.4191 99 0.03 91
IV.GIGS.HHZ. 2021-10-17T17:35:39.78 0.3 undecidable manual S 87 0.1826 118 -0.25 69
IV.LNSS.HHZ. 2021-10-17T17:35:38.15 0.6 positive manual P 307 0.2635 107 0.33 47
IV.CAMP.HHN. 2021-10-17T17:35:38.38 0.6 undecidable manual S 34 0.1097 136 0.07 50
IV.TERO.HHZ. 2021-10-17T17:35:38.39 1.0 undecidable manual P 49 0.2716 107 0.44 23
IV.RM33.EHZ. 2021-10-17T17:35:37.97 0.3 undecidable manual S 308 0.1043 138 -0.24 70
IV.SMA1.EHZ. 2021-10-17T17:35:36.97 0.6 negative manual P 2 0.1862 118 0.38 47
IV.GIGS.HHZ. 2021-10-17T17:35:36.17 0.1 undecidable manual P 87 0.1826 118 -0.36 90
IV.RM33.EHZ. 2021-10-17T17:35:35.85 0.1 negative manual P 308 0.1043 138 0.37 96
IV.CAMP.HHN. 2021-10-17T17:35:35.69 0.1 undecidable manual P 34 0.1097 136 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:0.6 2.874439E-5 0.1536 AML other m 2021-10-17T17:35:38.59
IV.RM33.EHE. ML:0.7 4.017553E-5 0.1408 AML other m 2021-10-17T17:35:38.74
IV.SMA1.EHE. ML:1.2 0.000106 0.38 AML other m 2021-10-17T17:35:40.64
IV.SMA1.EHN. ML:1.1 6.895E-5 0.3 AML other m 2021-10-17T17:35:40.77
IV.EUCT.HNE. ML:4.1 0.00047585295 0.0768 AML other m 2021-10-17T17:37:02.84
IV.EUCT.HNN. ML:4 0.000403298 0.128 AML other m 2021-10-17T17:37:02.84
IV.RM33.HNE. ML:1.2 0.000143421175 0.7296 AML other m 2021-10-17T17:35:38.12
IV.RM33.HNN. ML:1.1 9.7063775E-5 0.5376 AML other m 2021-10-17T17:35:41.98
IV.LNSS.HNE. ML:1.4 0.000105646365 0.4992 AML other m 2021-10-17T17:35:44.01
IV.LNSS.HNN. ML:1.6 0.00017728445 0.704 AML other m 2021-10-17T17:35:38.52
IV.LNSS.HHE. ML:1 4.0824665E-5 0.1408 AML other m 2021-10-17T17:35:42.85
IV.LNSS.HHN. ML:0.9 3.553065E-5 0.4352 AML other m 2021-10-17T17:35:42.27
IV.TERO.HHE. ML:1.2 7.2536755E-5 0.5632 AML other m 2021-10-17T17:35:53.11
IV.TERO.HHN. ML:0.4 7.7491599E-6 0.0768 AML other m 2021-10-17T17:35:44.12
IV.TERO.HNE. ML:1.5 0.0001380195 0.8192 AML other m 2021-10-17T17:35:39.56
IV.TERO.HNN. ML:1.6 0.00019557465 0.8576 AML other m 2021-10-17T17:35:42.15
IV.NRCA.HNE. ML:1.7 0.000122725995 0.4736 AML other m 2021-10-17T17:35:41.01
IV.NRCA.HNN. ML:1.7 0.0001420145 0.576 AML other m 2021-10-17T17:35:49.53
IV.NRCA.HHE. ML:0.7 1.6169325E-5 0.1408 AML other m 2021-10-17T17:35:47.37
IV.NRCA.HHN. ML:0.9 1.860503E-5 0.128 AML other m 2021-10-17T17:35:47.94
IV.SRES.HHE. ML:0.8 9.7931175E-6 0.0768 AML other m 2021-10-17T17:36:03.80
IV.SRES.HHN. ML:0.8 8.0813E-6 0.2688 AML other m 2021-10-17T17:35:48.55
IV.LRP.EHE. ML:1 8.4387135E-6 0.2432 AML other m 2021-10-17T17:36:16.40
IV.LRP.EHN. ML:0.6 2.7895795E-6 0.0768 AML other m 2021-10-17T17:35:53.36
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