Earthquake with magnitude of ML 1.4 on date 25-09-2021 and time 21:48:52 (Italy) in region 5 km NE Barete (AQ)

A magnitude ML 1.4 earthquake occured in region: 5 km NE Barete (AQ), on

  • 25-09-2021 19:48:52 (UTC)
  • 25-09-2021 21:48:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.476, 13.339 at 11 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 5 737 737
Pizzoli AQ 6 4326 5063
Capitignano AQ 6 665 5728
Montereale AQ 9 2581 8309
Campotosto AQ 10 542 8851
Cagnano Amiterno AQ 10 1369 10220
Scoppito AQ 13 3727 13947
Crognaleto TE 14 1297 15244
L'Aquila AQ 15 69753 84997
Borbona RI 17 617 85614
Amatrice RI 18 2657 88271
Fano Adriano TE 18 296 88567
Pietracamela TE 19 271 88838

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of L'Aquila (69753 inhabitants)
36 Km SW of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
70 Km W of Chieti (51815 inhabitants)
72 Km W of Pescara (121014 inhabitants)
72 Km NE of Tivoli (56533 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
96 Km NE of Roma (2864731 inhabitants)
99 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 2021-09-25
19:48:52
42.4765 13.3388 11 2021-09-25
19:53:44
Sala Sismica INGV-Roma 95875831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-25 19:48:52 ± 0.2
Latitude 42.4765 ± 0.0117
Longitude 13.3388 ± 0.0073
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95875831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1270
Semi-minor axis of confidence ellipse (meter) 397
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 170
Circular confidence region, given by single value of horizontal uncertainty (meter) 1270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 22
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) 0.62233
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 95875831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-25 19:53:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-09-25T19:49:13.89 0.6 undecidable manual S 351 0.6223 90 0.87 36
IV.FDMO.HHZ. 2021-09-25T19:49:12.63 1.0 undecidable manual S 342 0.5891 90 0.6 20
IV.TST02.HHZ. 2021-09-25T19:49:12.71 3.0 undecidable manual P 2.51 0
IV.MF5.EHZ. 2021-09-25T19:49:10.69 0.6 undecidable manual S 10 0.5189 90 0.75 39
IV.ARRO.EHZ. 2021-09-25T19:49:07.46 0.3 undecidable manual S 284 0.4344 90 0.02 72
IV.GAVE.EHZ. 2021-09-25T19:49:06.06 0.3 undecidable manual S 304 0.3921 90 -0.12 71
IV.NRCA.HHZ. 2021-09-25T19:49:05.97 0.3 undecidable manual S 335 0.393 90 -0.25 69
IV.CSP1.EHZ. 2021-09-25T19:49:04.19 1.0 negative manual P 351 0.6223 90 0 23
IV.FDMO.HHZ. 2021-09-25T19:49:03.66 0.1 undecidable manual P 342 0.5891 90 0.04 92
IV.MF5.EHZ. 2021-09-25T19:49:02.84 0.6 positive manual P 10 0.5189 90 0.44 43
IV.MTRA.EHZ. 2021-09-25T19:49:02.27 0.3 undecidable manual S 9 0.2833 90 -0.69 62
IV.TERO.HHZ. 2021-09-25T19:49:01.47 0.6 undecidable manual S 53 0.2437 90 -0.33 47
IV.LNSS.HHZ. 2021-09-25T19:49:01.84 0.3 undecidable manual S 300 0.2536 90 -0.24 71
IV.ARRO.EHZ. 2021-09-25T19:49:01.05 0.6 negative manual P 284 0.4344 90 0.08 47
IV.FIAM.HHZ. 2021-09-25T19:49:01.21 3.0 undecidable manual P 2.66 0
IV.NRCA.HHZ. 2021-09-25T19:49:00.16 0.3 negative manual P 335 0.393 90 -0.1 71
IV.GAVE.EHZ. 2021-09-25T19:49:00.27 1.0 negative manual P 304 0.3921 90 0.04 24
IV.FAGN.HHZ. 2021-09-25T19:49:00.43 3.0 negative manual P 1.56 0
IV.SMA1.EHZ. 2021-09-25T19:48:59.01 0.3 undecidable manual S 359 0.1538 92 -0.13 74
IV.LNSS.HHZ. 2021-09-25T19:48:58.04 0.6 undecidable manual P 300 0.2536 90 0.17 48
IV.MTRA.EHZ. 2021-09-25T19:48:58.18 0.1 positive manual P 9 0.2833 90 -0.2 95
IV.TERO.HHZ. 2021-09-25T19:48:57.70 0.1 undecidable manual P 53 0.2437 90 0 100
IV.RM33.EHZ. 2021-09-25T19:48:57.31 0.6 undecidable manual S 290 0.0971 116 -0.18 50
IV.SMA1.EHZ. 2021-09-25T19:48:56.26 0.3 negative manual P 359 0.1538 92 0.09 75
IV.RM33.EHZ. 2021-09-25T19:48:55.49 1.0 undecidable manual P 290 0.0971 116 0.27 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.4 0.0003045 0.26 AML other m 2021-09-25T19:48:57.66
IV.RM33.EHE. ML:1.4 0.0002605 0.9 AML other m 2021-09-25T19:48:57.66
IV.RM33.HNE. ML:1.4 0.000287 0.88 AML other m 2021-09-25T19:48:58.06
IV.RM33.HNN. ML:1.5 0.000337 0.58 AML other m 2021-09-25T19:48:58.37
IV.SMA1.EHN. ML:1.8 0.000512 0.48 AML other m 2021-09-25T19:48:59.70
IV.SMA1.EHE. ML:1.6 0.0003495 0.2 AML other m 2021-09-25T19:48:59.58
IV.LNSS.HHE. ML:1.3 9.355E-5 0.88 AML other m 2021-09-25T19:49:02.38
IV.LNSS.HHN. ML:1.2 7.895E-5 0.7 AML other m 2021-09-25T19:49:02.05
IV.TERO.HHN. ML:1.3 0.0001008 0.4 AML other m 2021-09-25T19:49:02.47
IV.MTRA.EHN. ML:2 0.0004255 0.44 AML other m 2021-09-25T19:49:02.53
IV.MTRA.HNN. ML:2 0.0004315 0.14 AML other m 2021-09-25T19:49:02.53
IV.MTRA.EHE. ML:1.8 0.000276 0.2 AML other m 2021-09-25T19:49:02.84
IV.MTRA.HNE. ML:1.9 0.000329 0.5 AML other m 2021-09-25T19:49:02.49
IV.TERO.HHE. ML:1.3 0.0001105 0.52 AML other m 2021-09-25T19:49:03.21
IV.NRCA.HHE. ML:1.6 0.000114 0.14 AML other m 2021-09-25T19:49:06.19
IV.GAVE.EHE. ML:1.1 3.68E-5 1.08 AML other m 2021-09-25T19:49:06.24
IV.GAVE.EHN. ML:1.1 3.32E-5 1.42 AML other m 2021-09-25T19:49:07.86
IV.NRCA.HHN. ML:1.4 8.125E-5 1.48 AML other m 2021-09-25T19:49:07.19
IV.ARRO.EHE. ML:1 2.2945E-5 1.18 AML other m 2021-09-25T19:49:09.59
IV.ARRO.EHN. ML:1 3.07E-5 0.98 AML other m 2021-09-25T19:49:10.85
IV.FDMO.HHN. ML:0.9 1.295E-5 0.84 AML other m 2021-09-25T19:49:13.87
IV.FDMO.HHE. ML:0.9 1.3E-5 0.88 AML other m 2021-09-25T19:49:18.53
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