Earthquake with magnitude of Md 2.2 on date 17-04-2001 and time 01:21:27 (Italy) in region 2 km E Barete (AQ)

A magnitude Md 2.2 earthquake occured in region: 2 km E Barete (AQ), on

  • 16-04-2001 23:21:27 (UTC)
  • 17-04-2001 01:21:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4570, 13.3110 at 18 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Barete AQ 2 737 737
Pizzoli AQ 3 4326 5063
Cagnano Amiterno AQ 7 1369 6432
Capitignano AQ 7 665 7097
Montereale AQ 9 2581 9678
Scoppito AQ 10 3727 13405
Campotosto AQ 12 542 13947
L'Aquila AQ 14 69753 83700
Borbona RI 16 617 84317
Crognaleto TE 17 1297 85614
Tornimparte AQ 18 3187 88801
Lucoli AQ 19 1011 89812
Posta RI 19 694 90506
Antrodoco RI 19 2588 93094
Amatrice RI 19 2657 95751

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of L'Aquila (69753 inhabitants)
39 Km SW of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
71 Km W of Chieti (51815 inhabitants)
74 Km W of Pescara (121014 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
96 Km NE of Velletri (53303 inhabitants)
99 Km E of Viterbo (67173 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
Bulletin
Rev1000
Md 2.2 2001-04-16
23:21:27
42.457 13.311 18 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 415869
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-04-16 23:21:27 ± 0.34
Latitude 42.4570 ± 0.0120
Longitude 13.3110 ± 0.0462
Depth (km) 18 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 415869

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4015.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00696
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 415869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:31:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 2001-04-16T23:21:45.52 10.0 undecidable manual SG 261 0.4662 0.63 0
--.PQ9.Z. 2001-04-16T23:21:44.10 10.0 undecidable manual SG 171 0.4329 0.08 0.5
--.ASS.Z. 2001-04-16T23:21:43.30 10.0 undecidable manual PG 321 0.777 0.15 0.8
--.NRCA.Z. 2001-04-16T23:21:42.53 10.0 undecidable manual SG 338 0.3996 -0.25 0.4
--.MNS.Z. 2001-04-16T23:21:37.90 10.0 undecidable manual PG 261 0.4662 -0.49 0.3
--.NRCA.Z. 2001-04-16T23:21:36.37 10.0 positive manual PG 338 0.3996 0 2.7
--.PQ9.Z. 2001-04-16T23:21:36.96 10.0 positive manual PG 171 0.4329 -0.07 2.5
--.AQU.Z. 2001-04-16T23:21:34.26 10.0 undecidable manual SG 146 0.1221 -0.67 0
--.AQU.Z. 2001-04-16T23:21:32.90 10.0 positive manual PG 146 0.1221 0.26 1.8
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