Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.0 on date 28-02-2017 and time 20:35:30 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude Md 1.0 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 28-02-2017 19:35:30 (UTC)
  • 28-02-2017 20:35:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8330, 13.1910 at 13 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castelsantangelo sul Nera MC 8 281 281
Norcia PG 9 4957 5238
Arquata del Tronto AP 11 1178 6416
Montegallo AP 12 523 6939
Ussita MC 13 444 7383
Montemonaco AP 13 604 7987
Preci PG 13 724 8711
Visso MC 14 1107 9818
Accumoli RI 16 667 10485
Montefortino FM 17 1178 11663
Bolognola MC 18 142 11805
Acquasanta Terme AP 19 2916 14721
Cascia PG 19 3217 17938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
93 Km W of Pescara (121014 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
100 Km E of Viterbo (67173 inhabitants)
100 Km NE of Guidonia Montecelio (88673 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		Md 1.0 2017-02-28
19:35:30		 42.8332 13.1913 13 2017-02-28
19:44:20		 Sala Sismica INGV-Roma 41768801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-28 19:35:30 ± 0.04
Latitude 42.8332 ± 0.0018
Longitude 13.1913 ± 0.0025
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 41768801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 240
Semi-minor axis of confidence ellipse (meter) 17
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25900
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

Md:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 3
Type of magnitude Md
Reference to an origin 41768801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-28 19:44:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1219.EHZ. 2017-02-28T19:35:40.75 3.0 undecidable manual S -0.34 0
IV.LNSS.HHZ. 2017-02-28T19:35:40.74 0.6 undecidable manual S 206 28.3494 96 0.08 48
IV.CSP1.EHZ. 2017-02-28T19:35:40.94 0.3 undecidable manual S 2 28.749 96 0.18 70
IV.T1218.EHZ. 2017-02-28T19:35:38.20 0.6 undecidable manual S 199 19.1697 103 -0.03 49
IV.T1212.EHZ. 2017-02-28T19:35:37.23 0.1 undecidable manual S 233 14.9739 112 0.05 98
IV.T1216.EHZ. 2017-02-28T19:35:37.22 0.6 undecidable manual S 295 15.3735 111 -0.06 49
IV.LNSS.HHZ. 2017-02-28T19:35:36.41 0.6 negative manual P 206 28.3494 96 -0.01 48
IV.MMO1.EHZ. 2017-02-28T19:35:36.67 0.1 undecidable manual S 56 13.2756 118 -0.08 98
IV.CSP1.EHZ. 2017-02-28T19:35:36.48 0.3 positive manual P 2 28.749 96 0 72
IV.T1215.EHZ. 2017-02-28T19:35:36.08 1.0 undecidable manual P 263 26.4513 97 -0.06 24
IV.NRCA.HHZ. 2017-02-28T19:35:35.19 0.6 undecidable manual S 270 6.2937 146 -0.18 48
IV.T1299.EHZ. 2017-02-28T19:35:35.81 3.0 negative manual P 0.08 0
IV.T1214.EHZ. 2017-02-28T19:35:35.78 0.6 undecidable manual S 170 8.2806 137 0.08 49
IV.T1218.EHZ. 2017-02-28T19:35:35.01 0.6 undecidable manual P 199 19.1697 103 -0.01 49
IV.FDMO.HHZ. 2017-02-28T19:35:35.67 0.6 negative manual P 339 24.0537 98 -0.09 48
IV.T1217.EHZ. 2017-02-28T19:35:35.80 0.3 undecidable manual P 238 25.0527 97 -0.12 71
IV.T1216.EHZ. 2017-02-28T19:35:34.46 0.6 positive manual P 295 15.3735 111 0 49
IV.MMO1.EHZ. 2017-02-28T19:35:34.10 0.1 undecidable manual P 56 13.2756 118 -0.06 98
IV.T1212.EHZ. 2017-02-28T19:35:34.43 0.3 positive manual P 233 14.9739 112 0.03 74
IV.NRCA.HHZ. 2017-02-28T19:35:33.39 0.1 positive manual P 270 6.2937 146 0.03 100
IV.T1214.EHZ. 2017-02-28T19:35:33.67 0.6 undecidable manual P 170 8.2806 137 0.12 49
IV.MC2.EHZ. 2017-02-28T19:35:33.74 0.6 undecidable manual P 359 8.6802 135 0.15 49
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