Earthquake with magnitude of ML 1.1 on date 22-08-2019 and time 04:59:10 (Italy) in region 3 km N Valle Castellana (TE)

A magnitude ML 1.1 earthquake occured in region: 3 km N Valle Castellana (TE), on

  • 22-08-2019 02:59:10 (UTC)
  • 22-08-2019 04:59:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.77, 13.49 at 24 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
Valle Castellana TE 3 977 977
Acquasanta Terme AP 6 2916 3893
Rocca Santa Maria TE 9 537 4430
Roccafluvione AP 11 2010 6440
Ascoli Piceno AP 12 49407 55847
Venarotta AP 13 2066 57913
Folignano AP 13 9241 67154
Civitella del Tronto TE 15 5116 72270
Palmiano AP 15 196 72466
Montegallo AP 15 523 72989
Arquata del Tronto AP 16 1178 74167
Cortino TE 16 656 74823
Campli TE 17 7209 82032
Maltignano AP 18 2401 84433
Torricella Sicura TE 18 2641 87074
Montemonaco AP 20 604 87678
Sant'Egidio alla Vibrata TE 20 9811 97489

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Teramo (54892 inhabitants)
47 Km N of L'Aquila (69753 inhabitants)
61 Km W of Montesilvano (53738 inhabitants)
67 Km E of Foligno (57155 inhabitants)
68 Km W of Pescara (121014 inhabitants)
72 Km NW of Chieti (51815 inhabitants)
72 Km E of Terni (111501 inhabitants)
95 Km S of Ancona (100861 inhabitants)
97 Km E 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 2019-08-22
02:59:10
42.77 13.49 24 2019-08-22
03:17:06
Sala Sismica INGV-Roma 71689441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-22 02:59:10 ± 0.18
Latitude 42.77 ± 0.01
Longitude 13.49 ± 0.01
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71689441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 883
Semi-minor axis of confidence ellipse (meter) 242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 880
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.06835
Epicentral distance of station farthest from the epicenter (degree) 0.3993
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 71689441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-22 03:17:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2019-08-22T02:59:25.81 0.3 undecidable manual S 313 0.3993 111 0.01 71
IV.CSP1.EHZ. 2019-08-22T02:59:25.52 0.1 undecidable manual S 328 0.3858 111 0.08 95
IV.MC2.EHZ. 2019-08-22T02:59:22.36 0.1 undecidable manual S 304 0.2635 122 0.19 96
IV.NRCA.HHZ. 2019-08-22T02:59:22.54 0.1 undecidable manual S 284 0.2824 120 -0.13 94
IV.MF5.EHZ. 2019-08-22T02:59:21.21 0.1 undecidable manual S 355 0.223 127 0.02 99
IV.CAMP.HHE. 2019-08-22T02:59:21.53 0.1 undecidable manual S 194 0.2374 125 -0.01 99
IV.T1299.EHE. 2019-08-22T02:59:20.93 0.1 undecidable manual S 229 0.2005 131 0.25 95
IV.SMA1.EHZ. 2019-08-22T02:59:20.16 0.1 undecidable manual S 220 0.1763 135 0.01 100
IV.MMO1.EHZ. 2019-08-22T02:59:20.90 0.1 undecidable manual S 318 0.1781 135 0.71 84
IV.CSP1.EHZ. 2019-08-22T02:59:19.14 0.1 undecidable manual P 328 0.3858 111 -0.15 93
IV.FDMO.HHZ. 2019-08-22T02:59:19.26 0.1 undecidable manual P 313 0.3993 111 -0.24 91
IV.MTRA.EHZ. 2019-08-22T02:59:17.70 0.1 undecidable manual S 262 0.0683 160 -0.7 85
IV.MC2.EHZ. 2019-08-22T02:59:17.38 0.1 undecidable manual P 304 0.2635 122 -0.03 97
IV.CAMP.HHE. 2019-08-22T02:59:17.06 0.1 undecidable manual P 194 0.2374 125 0.02 98
IV.NRCA.HHZ. 2019-08-22T02:59:17.64 0.1 positive manual P 284 0.2824 120 -0.05 97
IV.SMA1.EHZ. 2019-08-22T02:59:16.36 0.1 undecidable manual P 220 0.1763 135 0.12 97
IV.MF5.EHZ. 2019-08-22T02:59:16.89 0.1 undecidable manual P 355 0.223 127 0.05 98
IV.TERO.HHZ. 2019-08-22T02:59:16.20 0.1 undecidable manual P 149 0.1664 137 0.08 97
IV.T1299.EHE. 2019-08-22T02:59:16.77 0.1 undecidable manual P 229 0.2005 131 0.22 95
IV.MTRA.EHZ. 2019-08-22T02:59:15.05 0.1 undecidable manual P 262 0.0683 160 -0.18 99
IV.MMO1.EHZ. 2019-08-22T02:59:15.98 0.1 undecidable manual P 318 0.1781 135 -0.28 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.2 9.96E-5 0.16 AML other m 2019-08-22T02:59:17.78
IV.MTRA.EHN. ML:1 6.875E-5 1.82 AML other m 2019-08-22T02:59:17.06
IV.SMA1.EHE. ML:1.1 7.18E-5 0.38 AML other m 2019-08-22T02:59:20.38
IV.TERO.HHN. ML:0.8 2.905E-5 1 AML other m 2019-08-22T02:59:20.04
IV.SMA1.EHN. ML:1.2 7.59E-5 1.16 AML other m 2019-08-22T02:59:20.29
IV.TERO.HHE. ML:0.8 3.345E-5 1.02 AML other m 2019-08-22T02:59:21.34
IV.NRCA.HHE. ML:1.4 8.465E-5 0.12 AML other m 2019-08-22T02:59:22.72
IV.NRCA.HHN. ML:1.6 0.0001465 0.14 AML other m 2019-08-22T02:59:22.84
IV.FDMO.HHE. ML:0.6 1.1458625E-5 0.7408 AML other m 2019-08-22T02:59:26.25
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