Earthquake with magnitude of ML 1.1 on date 19-08-2019 and time 23:01:17 (UTC) in region 2 km SE Amatrice (RI)

A magnitude ML 1.1 earthquake occured in region: 2 km SE Amatrice (RI), on

  • 19-08-2019 23:01:17 (UTC)
  • 20-08-2019 01:01:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.31 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
Amatrice RI 2 2657 2657
Campotosto AQ 8 542 3199
Accumoli RI 10 667 3866
Capitignano AQ 11 665 4531
Montereale AQ 11 2581 7112
Cittareale RI 12 482 7594
Crognaleto TE 16 1297 8891
Cortino TE 17 656 9547
Arquata del Tronto AP 17 1178 10725
Borbona RI 18 617 11342
Barete AQ 19 737 12079
Cagnano Amiterno AQ 19 1369 13448
Acquasanta Terme AP 19 2916 16364
Rocca Santa Maria TE 20 537 16901
Pizzoli AQ 20 4326 21227

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
76 Km W of Pescara (121014 inhabitants)
77 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
93 Km SE of Perugia (166134 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 1.1 2019-08-19
23:01:17
42.62 13.31 11 2019-08-19
23:07:38
Sala Sismica INGV-Roma 71635961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-19 23:01:17 ± 0.04
Latitude 42.62 ± 0.00
Longitude 13.31 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71635961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 36
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 315
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.4002
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 71635961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 23:07:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MC2.EHZ. 2019-08-19T23:01:29.52 0.1 undecidable manual S 344 0.3067 91 0 96
IV.CSP1.EHZ. 2019-08-19T23:01:28.57 3.0 undecidable manual P 0.55 0
IV.MMO1.EHZ. 2019-08-19T23:01:28.98 0.1 undecidable manual S 3 0.2824 91 0.17 94
IV.GIGS.HHZ. 2019-08-19T23:01:27.85 0.1 undecidable manual S 130 0.2554 91 -0.15 94
IV.NRCA.HHZ. 2019-08-19T23:01:27.88 0.1 undecidable manual S 327 0.2581 91 -0.22 93
IV.TERO.HHZ. 2019-08-19T23:01:26.85 0.1 undecidable manual S 88 0.2185 92 -0.06 97
IV.MF5.EHZ. 2019-08-19T23:01:26.86 3.0 negative manual P 0.56 0
IV.ARRO.EHZ. 2019-08-19T23:01:26.17 0.1 undecidable manual P 265 0.4002 91 -0.08 93
IV.LNSS.HHE. 2019-08-19T23:01:26.15 0.3 undecidable manual S 266 0.197 92 -0.13 72
IV.MMO1.EHZ. 2019-08-19T23:01:24.40 0.1 undecidable manual P 3 0.2824 91 0.17 94
IV.MC2.EHZ. 2019-08-19T23:01:24.84 0.1 undecidable manual P 344 0.3067 91 0.2 93
IV.RM33.EHZ. 2019-08-19T23:01:24.16 0.1 undecidable manual S 212 0.1277 102 -0.09 98
IV.MTRA.EHZ. 2019-08-19T23:01:24.73 0.1 undecidable manual S 25 0.1538 95 -0.28 93
IV.CAMP.HHE. 2019-08-19T23:01:23.59 0.1 undecidable manual S 137 0.1106 111 -0.16 97
IV.TERO.HHZ. 2019-08-19T23:01:23.23 0.1 undecidable manual P 88 0.2185 92 0.09 97
IV.GIGS.HHZ. 2019-08-19T23:01:23.75 0.1 undecidable manual P 130 0.2554 91 -0.02 97
IV.NRCA.HHZ. 2019-08-19T23:01:23.84 0.1 undecidable manual P 327 0.2581 91 0.02 97
IV.MTRA.EHZ. 2019-08-19T23:01:22.09 0.1 undecidable manual P 25 0.1538 95 0.05 99
IV.LNSS.HHE. 2019-08-19T23:01:22.81 0.3 undecidable manual P 266 0.197 92 0.04 73
IV.SMA1.EHZ. 2019-08-19T23:01:21.90 0.1 undecidable manual S 57 0.0243 163 -0.13 100
IV.CAMP.HHE. 2019-08-19T23:01:21.46 0.1 undecidable manual P 137 0.1106 111 0.15 97
IV.T1299.EHE. 2019-08-19T23:01:21.83 0.1 undecidable manual S 313 0.0252 162 -0.2 98
IV.RM33.EHZ. 2019-08-19T23:01:21.78 0.1 negative manual P 212 0.1277 102 0.18 96
IV.T1299.EHE. 2019-08-19T23:01:20.52 0.1 undecidable manual P 313 0.0252 162 0.2 97
IV.SMA1.EHZ. 2019-08-19T23:01:20.60 0.1 positive manual P 57 0.0243 163 0.28 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.5 0.00052528565 0.1408 AML other m 2019-08-19T23:01:22.39
IV.SMA1.EHN. ML:1.1 0.00021234595 0.1408 AML other m 2019-08-19T23:01:22.38
IV.RM33.HNE. ML:1.4 0.00021159065 0.2432 AML other m 2019-08-19T23:01:24.63
IV.RM33.HNN. ML:1.3 0.000190232125 0.3072 AML other m 2019-08-19T23:01:24.29
IV.RM33.EHE. ML:1.4 0.00020958 0.128 AML other m 2019-08-19T23:01:24.62
IV.RM33.EHN. ML:1.1 0.000120876955 0.1408 AML other m 2019-08-19T23:01:24.44
IV.MTRA.HNE. ML:1.2 0.0001158161 0.0896 AML other m 2019-08-19T23:01:24.79
IV.MTRA.EHE. ML:1.2 0.000119423935 0.1024 AML other m 2019-08-19T23:01:24.79
IV.MTRA.EHN. ML:0.9 6.5190575E-5 0.2688 AML other m 2019-08-19T23:01:25.58
IV.TERO.HHE. ML:0.7 3.039271E-5 0.064 AML other m 2019-08-19T23:01:27.50
IV.TERO.HHN. ML:0.8 3.4806005E-5 0.064 AML other m 2019-08-19T23:01:27.89
IV.GIGS.HHE. ML:0 5.8554225E-6 0.0768 AML other m 2019-08-19T23:01:28.64
IV.GIGS.HHN. ML:0.3 1.0802798E-5 0.1792 AML other m 2019-08-19T23:01:27.95
IV.NRCA.HHE. ML:1.3 9.0334315E-5 0.0768 AML other m 2019-08-19T23:01:28.34
IV.NRCA.HHN. ML:1.1 6.559978E-5 0.1024 AML other m 2019-08-19T23:01:28.21
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