Earthquake with magnitude of ML 1.3 on date 25-10-2021 and time 22:46:33 (Italy) in region 2 km SW Capitignano (AQ)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Capitignano (AQ), on

  • 25-10-2021 20:46:33 (UTC)
  • 25-10-2021 22:46:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.505, 13.286 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
Capitignano AQ 2 665 665
Montereale AQ 4 2581 3246
Barete AQ 6 737 3983
Cagnano Amiterno AQ 7 1369 5352
Pizzoli AQ 8 4326 9678
Campotosto AQ 9 542 10220
Borbona RI 13 617 10837
Amatrice RI 14 2657 13494
Scoppito AQ 15 3727 17221
Posta RI 16 694 17915
Cittareale RI 16 482 18397
Crognaleto TE 17 1297 19694
Antrodoco RI 19 2588 22282
L'Aquila AQ 19 69753 92035
Micigliano RI 20 127 92162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
72 Km NE of Tivoli (56533 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km W of Chieti (51815 inhabitants)
76 Km W of Pescara (121014 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
99 Km SE of Perugia (166134 inhabitants)
100 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 1.3 2021-10-25
20:46:33
42.505 13.2858 10 2021-10-25
20:52:50
Sala Sismica INGV-Roma 96988721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-25 20:46:33 ± 0.18
Latitude 42.5050 ± 0.0090
Longitude 13.2858 ± 0.0134
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96988721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1206
Semi-minor axis of confidence ellipse (meter) 855
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.58906
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 96988721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-25 20:52:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2021-10-25T20:47:58.16 3.0 undecidable manual Sn -0.68 0
IV.NDIM.HHZ. 2021-10-25T20:47:56.88 3.0 undecidable manual Sn 1.19 0
IV.MDI.HHZ. 2021-10-25T20:47:47.08 3.0 undecidable manual Pg 10.92 0
IV.PTCC.HHZ. 2021-10-25T20:47:43.08 3.0 undecidable manual Pg 10.43 0
OX.CAE.HHZ. 2021-10-25T20:47:37.82 3.0 undecidable manual Pg 9.92 0
IX.NSC3.EHZ.02 2021-10-25T20:47:15.00 3.0 positive manual Pg 6.13 0
OT.OT17.EHZ. 2021-10-25T20:47:03.61 3.0 negative manual Pn 0.28 0
IV.CSP1.EHZ. 2021-10-25T20:46:54.27 0.1 undecidable manual S 354 0.5891 50 0.84 75
IV.FDMO.HHZ. 2021-10-25T20:46:52.77 0.1 undecidable manual S 345 0.5504 50 0.49 88
IV.PP3.EHZ. 2021-10-25T20:46:51.64 3.0 positive manual P 0.75 0
IV.MC2.EHZ. 2021-10-25T20:46:48.76 0.1 undecidable manual S 350 0.4119 50 0.57 87
IV.MMO1.EHZ. 2021-10-25T20:46:47.62 0.1 undecidable manual S 4 0.3948 50 -0.06 99
IV.SRES.HHZ. 2021-10-25T20:46:46.02 3.0 positive manual P -0.16 0
IV.NRCA.HHZ. 2021-10-25T20:46:46.09 0.1 undecidable manual S 339 0.3516 50 -0.29 95
IV.FAGN.HHZ. 2021-10-25T20:46:46.29 0.1 undecidable manual S 137 0.3247 50 0.7 85
IV.CSP1.EHZ. 2021-10-25T20:46:44.39 0.6 negative manual P 354 0.5891 50 -0.55 43
IV.FDMO.HHZ. 2021-10-25T20:46:43.74 1.0 undecidable manual P 345 0.5504 50 -0.54 22
IV.TERO.HHZ. 2021-10-25T20:46:42.96 0.1 undecidable manual S 63 0.2617 50 -0.77 83
IV.MC2.EHZ. 2021-10-25T20:46:41.70 1.0 undecidable manual P 350 0.4119 50 -0.21 24
IV.LNSS.HHZ. 2021-10-25T20:46:41.74 0.1 undecidable manual S 298 0.2059 114 -0.29 98
IV.MMO1.EHZ. 2021-10-25T20:46:40.94 1.0 undecidable manual P 4 0.3948 50 -0.68 21
IV.NRCA.HHZ. 2021-10-25T20:46:40.20 0.3 positive manual P 339 0.3516 50 -0.67 64
IV.FAGN.HHZ. 2021-10-25T20:46:40.22 0.6 undecidable manual P 137 0.3247 50 -0.2 49
IV.SMA1.EHZ. 2021-10-25T20:46:39.85 0.1 undecidable manual S 16 0.1304 125 0.33 99
IV.TERO.HHZ. 2021-10-25T20:46:38.40 1.0 undecidable manual P 63 0.2617 50 -0.94 19
IV.LNSS.HHZ. 2021-10-25T20:46:37.97 0.1 positive manual P 298 0.2059 114 -0.39 96
IV.RM33.EHZ. 2021-10-25T20:46:37.80 0.1 undecidable manual S 274 0.0531 150 0.33 100
IV.SMA1.EHZ. 2021-10-25T20:46:36.78 0.6 positive manual P 16 0.1304 125 -0.13 51
IV.RM33.EHZ. 2021-10-25T20:46:35.85 0.3 positive manual P 274 0.0531 150 0.13 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:1.2 0.0002425 1.2 AML other m 2021-10-25T20:46:37.32
IV.RM33.EHN. ML:1.2 0.000223 1.2 AML other m 2021-10-25T20:46:37.93
IV.RM33.HNE. ML:1.2 0.000244 1.08 AML other m 2021-10-25T20:46:38.03
IV.RM33.EHE. ML:1.2 0.0002495 1.08 AML other m 2021-10-25T20:46:38.03
IV.SMA1.EHE. ML:1.3 0.0002085 0.18 AML other m 2021-10-25T20:46:39.89
IV.SMA1.EHN. ML:1.2 0.0001715 0.62 AML other m 2021-10-25T20:46:40.08
IV.LNSS.HHE. ML:1.6 0.000258 1.88 AML other m 2021-10-25T20:46:41.94
IV.LNSS.HHN. ML:1.2 0.0001115 0.84 AML other m 2021-10-25T20:46:42.85
IV.NRCA.HHN. ML:1.2 5.15E-5 0.4 AML other m 2021-10-25T20:46:46.22
IV.NRCA.HHE. ML:1.2 5.51E-5 0.42 AML other m 2021-10-25T20:46:47.47
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