Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 25-09-2019 and time 05:55:17 (Italy) in region 4 km NE Campotosto (AQ)

A magnitude ML 0.7 earthquake occured in region: 4 km NE Campotosto (AQ), on

  • 25-09-2019 03:55:17 (UTC)
  • 25-09-2019 05:55:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.59, 13.4 at 9 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.

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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 4 542 542
Crognaleto TE 8 1297 1839
Amatrice RI 10 2657 4496
Cortino TE 10 656 5152
Capitignano AQ 11 665 5817
Fano Adriano TE 12 296 6113
Montereale AQ 14 2581 8694
Pietracamela TE 15 271 8965
Rocca Santa Maria TE 15 537 9502
Accumoli RI 17 667 10169
Barete AQ 18 737 10906
Valle Castellana TE 18 977 11883
Pizzoli AQ 19 4326 16209
Montorio al Vomano TE 19 8218 24427
Cittareale RI 20 482 24909
Cagnano Amiterno AQ 20 1369 26278

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of L'Aquila (69753 inhabitants)
27 Km W of Teramo (54892 inhabitants)
61 Km E of Terni (111501 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
69 Km W of Pescara (121014 inhabitants)
69 Km W of Chieti (51815 inhabitants)
70 Km SE of Foligno (57155 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 0.7 2019-09-25
03:55:17		 42.59 13.4 9 2019-09-25
04:01:16		 Sala Sismica INGV-Roma 72746761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-25 03:55:17 ± 0.09
Latitude 42.59 ± 0.00
Longitude 13.40 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72746761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 431
Semi-minor axis of confidence ellipse (meter) 423
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
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) 78
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35613
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 72746761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-25 04:01:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2019-09-25T03:55:54.37 3.0 undecidable manual S -0.14 0
IV.ARVD.HHZ. 2019-09-25T03:55:34.03 3.0 negative manual P -0.51 0
IV.MC2.EHZ. 2019-09-25T03:55:31.00 0.6 undecidable manual S 335 0.3561 50 0.35 44
IV.NRCA.HHZ. 2019-09-25T03:55:29.06 0.3 undecidable manual S 320 0.3193 50 -0.52 65
IV.MC2.EHZ. 2019-09-25T03:55:25.47 0.3 undecidable manual P 335 0.3561 50 0.5 65
IV.GIGS.HHZ. 2019-09-25T03:55:24.74 0.3 undecidable manual S 136 0.1889 113 -0.39 68
IV.MTRA.EHE. 2019-09-25T03:55:24.15 0.3 undecidable manual S 0 0.1673 116 -0.22 71
IV.NRCA.HHZ. 2019-09-25T03:55:24.05 0.1 undecidable manual P 320 0.3193 50 -0.3 91
IV.TERO.HHZ. 2019-09-25T03:55:23.99 0.1 undecidable manual S 78 0.1565 118 -0.03 99
IV.RM33.EHZ. 2019-09-25T03:55:23.81 0.3 undecidable manual S 239 0.1556 118 -0.17 72
IV.T1299.EHE. 2019-09-25T03:55:22.09 0.3 undecidable manual S 298 0.0944 131 0.06 75
IV.RM33.EHZ. 2019-09-25T03:55:21.22 0.1 undecidable manual P 239 0.1556 118 0.1 97
IV.TERO.HHZ. 2019-09-25T03:55:21.29 0.1 undecidable manual P 78 0.1565 118 0.15 97
IV.GIGS.HHZ. 2019-09-25T03:55:21.80 0.3 undecidable manual P 136 0.1889 113 0.02 74
IV.MTRA.EHE. 2019-09-25T03:55:21.36 0.3 undecidable manual P 0 0.1673 116 0.01 74
IV.T1299.EHE. 2019-09-25T03:55:20.26 0.1 undecidable manual P 298 0.0944 131 0.27 95
IV.CAMP.HHE. 2019-09-25T03:55:20.92 0.1 undecidable manual S 170 0.0549 146 -0.07 100
IV.SMA1.EHZ. 2019-09-25T03:55:20.77 0.3 undecidable manual S 313 0.0603 144 -0.35 71
IV.CAMP.HHE. 2019-09-25T03:55:19.65 0.1 undecidable manual P 170 0.0549 146 0.26 96
IV.SMA1.EHZ. 2019-09-25T03:55:19.67 0.1 undecidable manual P 313 0.0603 144 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.7 8.6E-5 0.32 AML other m 2019-09-25T03:55:21.29
IV.SMA1.EHE. ML:0.6 7.205E-5 0.36 AML other m 2019-09-25T03:55:21.36
IV.TERO.HHN. ML:0.7 3.88E-5 0.26 AML other m 2019-09-25T03:55:24.27
IV.TERO.HHE. ML:0.7 3.86E-5 0.2 AML other m 2019-09-25T03:55:24.10
IV.RM33.EHN. ML:0.5 3.025E-5 0.82 AML other m 2019-09-25T03:55:24.68
IV.RM33.EHE. ML:0.6 3.635E-5 1.04 AML other m 2019-09-25T03:55:24.29
IV.NRCA.HHE. ML:1.2 6.425E-5 0.14 AML other m 2019-09-25T03:55:29.32
IV.NRCA.HHN. ML:1.1 5.215E-5 0.12 AML other m 2019-09-25T03:55:29.33
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download