Earthquake with magnitude of ML 1.5 on date 07-09-2021 and time 08:21:36 (UTC) in region 3 km SE Campotosto (AQ)

A magnitude ML 1.5 earthquake occured in region: 3 km SE Campotosto (AQ), on

  • 07-09-2021 08:21:36 (UTC)
  • 07-09-2021 10:21:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.531, 13.385 at 15 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
Campotosto AQ 3 542 542
Capitignano AQ 7 665 1207
Crognaleto TE 8 1297 2504
Montereale AQ 11 2581 5085
Barete AQ 12 737 5822
Pizzoli AQ 13 4326 10148
Fano Adriano TE 13 296 10444
Amatrice RI 14 2657 13101
Pietracamela TE 14 271 13372
Cortino TE 14 656 14028
Cagnano Amiterno AQ 15 1369 15397
L'Aquila AQ 20 69753 85150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of L'Aquila (69753 inhabitants)
30 Km W of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
67 Km W of Chieti (51815 inhabitants)
68 Km W of Pescara (121014 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
80 Km NE of Guidonia Montecelio (88673 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 2021-09-07
08:21:36
42.5308 13.3848 15 2021-09-07
08:33:51
Sala Sismica INGV-Roma 95146001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-07 08:21:36 ± 0.09
Latitude 42.5308 ± 0.0045
Longitude 13.3848 ± 0.0049
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95146001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 313
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.45955
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 95146001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-07 08:33:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MC2.EHZ. 2021-09-07T08:21:51.78 3.0 undecidable manual S 0.18 0
IV.FAGN.HHZ. 2021-09-07T08:21:49.36 3.0 undecidable manual S 0.29 0
IV.NRCA.HHZ. 2021-09-07T08:21:49.60 0.3 undecidable manual S 327 0.3615 98 -0.1 70
IV.CSP1.EHZ. 2021-09-07T08:21:47.53 3.0 undecidable manual P -0.48 0
IV.MF5.EHZ. 2021-09-07T08:21:46.13 0.1 undecidable manual P 7 0.4596 96 0.37 88
IV.LNSS.HHZ. 2021-09-07T08:21:46.85 0.3 undecidable manual S 286 0.2635 102 0.02 73
IV.MTRA.EHZ. 2021-09-07T08:21:45.55 0.3 undecidable manual S 2 0.2257 106 -0.19 71
IV.TERO.HHZ. 2021-09-07T08:21:44.60 0.3 undecidable manual S 60 0.1853 112 -0.01 74
IV.T1299.HNE. 2021-09-07T08:21:43.29 0.3 undecidable manual S 324 0.1277 125 0.19 73
IV.GIGS.HHE. 2021-09-07T08:21:43.76 0.1 undecidable manual S 119 0.1592 117 -0.13 98
IV.RM33.EHZ. 2021-09-07T08:21:43.03 0.1 undecidable manual S 260 0.1277 125 -0.06 100
IV.NRCA.HHZ. 2021-09-07T08:21:43.92 0.1 undecidable manual P 327 0.3615 98 -0.18 92
IV.SMA1.EHZ. 2021-09-07T08:21:42.04 0.3 undecidable manual S 340 0.1061 132 -0.56 67
IV.LNSS.HHZ. 2021-09-07T08:21:42.39 0.1 undecidable manual P 286 0.2635 102 -0.05 96
IV.GAVE.EHZ. 2021-09-07T08:21:42.10 3.0 negative manual P -2.63 0
IV.TERO.HHZ. 2021-09-07T08:21:41.17 0.1 undecidable manual P 60 0.1853 112 0.01 99
IV.MTRA.EHZ. 2021-09-07T08:21:41.67 0.1 undecidable manual P 2 0.2257 106 -0.14 95
IV.CAMP.HHE. 2021-09-07T08:21:41.47 0.3 undecidable manual S 75 0.0189 170 0.15 74
IV.T1299.HNE. 2021-09-07T08:21:40.48 0.3 undecidable manual P 324 0.1277 125 0.19 73
IV.SMA1.EHZ. 2021-09-07T08:21:40.14 0.1 undecidable manual P 340 0.1061 132 0.14 98
IV.GIGS.HHE. 2021-09-07T08:21:40.71 0.1 undecidable manual P 119 0.1592 117 -0.03 99
IV.RM33.EHZ. 2021-09-07T08:21:40.33 0.1 positive manual P 260 0.1277 125 0.05 100
IV.CAMP.HHE. 2021-09-07T08:21:39.47 0.1 undecidable manual P 75 0.0189 170 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.3 0.000182 1.58 AML other m 2021-09-07T08:21:42.91
IV.RM33.EHN. ML:1.4 0.000228 0.84 AML other m 2021-09-07T08:21:43.13
IV.RM33.EHE. ML:1.4 0.0002195 0.38 AML other m 2021-09-07T08:21:43.72
IV.SMA1.EHE. ML:1.7 0.000432 0.46 AML other m 2021-09-07T08:21:43.32
IV.TERO.HHN. ML:1.5 0.000208 0.08 AML other m 2021-09-07T08:21:44.76
IV.TERO.HHE. ML:1.5 0.0002145 1.58 AML other m 2021-09-07T08:21:44.13
IV.MTRA.EHE. ML:1.5 0.000172 0.54 AML other m 2021-09-07T08:21:46.00
IV.MTRA.EHN. ML:1.3 0.0001019 0.56 AML other m 2021-09-07T08:21:46.67
IV.LNSS.HHN. ML:1.7 0.000232 0.14 AML other m 2021-09-07T08:21:47.17
IV.LNSS.HHE. ML:1.8 0.0003005 0.28 AML other m 2021-09-07T08:21:47.13
IV.NRCA.HHE. ML:1.9 0.0002715 0.14 AML other m 2021-09-07T08:21:49.87
IV.NRCA.HHN. ML:1.7 0.0001665 1.58 AML other m 2021-09-07T08:21:50.84
IV.FAGN.HHE. ML:1.4 0.0001085 0.4 AML other m 2021-09-07T08:21:53.42
IV.FAGN.HHN. ML:1.2 6.98E-5 1.24 AML other m 2021-09-07T08:21:55.17
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