Earthquake with magnitude of Md 2.2 on date 18-10-1988 and time 08:48:21 (UTC) in region 4 km N Barete (AQ)

A magnitude Md 2.2 earthquake occured in region: 4 km N Barete (AQ), on

  • 18-10-1988 08:48:21 (UTC)
  • 18-10-1988 09:48:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4850, 13.2780 at 10 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 4 737 737
Capitignano AQ 5 665 1402
Cagnano Amiterno AQ 5 1369 2771
Montereale AQ 5 2581 5352
Pizzoli AQ 6 4326 9678
Campotosto AQ 11 542 10220
Borbona RI 12 617 10837
Scoppito AQ 13 3727 14564
Posta RI 16 694 15258
Amatrice RI 16 2657 17915
Cittareale RI 18 482 18397
L'Aquila AQ 18 69753 88150
Antrodoco RI 18 2588 90738
Crognaleto TE 18 1297 92035
Micigliano RI 19 127 92162
Borgo Velino RI 20 972 93134

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
70 Km SE of Foligno (57155 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
75 Km W of Chieti (51815 inhabitants)
77 Km W of Pescara (121014 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
98 Km NE of Velletri (53303 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 1988-10-18
08:48:21
42.485 13.278 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 79089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-18 08:48:21 ± 0.161
Latitude 42.4850 ± 0.0102
Longitude 13.2780 ± 0.0135
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 79089

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) 1584.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00777
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 79089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:14:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 1988-10-18T08:48:51.43 10.0 undecidable manual SG 152 0.8658 -0.36 0.4
--.ASS.Z. 1988-10-18T08:48:48.45 10.0 undecidable manual SG 321 0.7326 0.9 0.1
--.SDI.Z. 1988-10-18T08:48:40.90 10.0 undecidable manual PG 152 0.8658 0.9 0.3
--.MNS.Z. 1988-10-18T08:48:38.65 10.0 undecidable manual SG 257 0.444 0.28 0.7
--.ASS.Z. 1988-10-18T08:48:36.96 10.0 undecidable manual PG 321 0.7326 0.23 1.4
--.ALP.Z. 1988-10-18T08:48:35.40 10.0 undecidable manual SG 35 0.3552 -0.16 0.7
--.MNS.Z. 1988-10-18T08:48:30.99 10.0 positive manual PG 257 0.444 -0.44 2.6
--.ALP.Z. 1988-10-18T08:48:29.39 10.0 undecidable manual PG 35 0.3552 -0.42 1.4
--.AQU.Z. 1988-10-18T08:48:28.50 10.0 undecidable manual SG 145 0.1554 -0.5 0.5
--.AQU.Z. 1988-10-18T08:48:26.13 10.0 undecidable manual PG 145 0.1554 0.11 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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